# ToolAnchor

> A growing A-Z collection of free, fast, privacy-first online tools for PDF, images, text, developers and everyday calculations. No uploads, no sign-up.

ToolAnchor is a free, privacy-first collection of 104 online tools that run entirely in the user's browser — no uploads, no sign-up, no limits. Tools span PDF, image, text, developer and calculator tasks. Every tool has its own page with a how-to and FAQ. There is also a natural-language assistant at https://toolanchor.com/ask where a user describes a task (and can attach a file) and the right tool runs in-browser.

## PDF Tools
- [Merge PDF](https://toolanchor.com/tools/merge-pdf): Combine multiple PDF files into one document in any order — free, fast and 100% private. Files never leave your browser.
- [Split PDF](https://toolanchor.com/tools/split-pdf): Extract pages or page ranges from a PDF into a new file — free, private and entirely in your browser. No uploads, no sign-up.
- [Rotate PDF](https://toolanchor.com/tools/rotate-pdf): Rotate the pages of a PDF by 90°, 180° or 270° and download the fixed file. Free, private, runs entirely in your browser.
- [JPG to PDF](https://toolanchor.com/tools/jpg-to-pdf): Convert JPG, PNG and WebP images into a single PDF document — free and private, with no uploads. Reorder images before converting.
- [Compress PDF](https://toolanchor.com/tools/compress-pdf): Reduce PDF file size for free, right in your browser. Adjustable quality, no uploads — your file never leaves your device.
- [PDF to Images (JPG / PNG)](https://toolanchor.com/tools/pdf-to-images): Convert each page of a PDF into a high-quality PNG image and download them. Free, private, in-browser — no uploads.
- [PDF to Text](https://toolanchor.com/tools/pdf-to-text): Extract all text from a PDF and copy or download it. Free, private, in-browser PDF text extractor — no uploads.
- [Add Page Numbers to PDF](https://toolanchor.com/tools/pdf-page-numbers): Add page numbers to a PDF for free, in your browser — choose position, start number and “n / total” format. No uploads.
- [Add Watermark to PDF](https://toolanchor.com/tools/watermark-pdf): Add a text watermark to every page of a PDF for free, in your browser — adjustable opacity, size and angle. No uploads.
- [Organize PDF Pages](https://toolanchor.com/tools/organize-pdf): Reorder and delete pages in a PDF for free, in your browser — rearrange the sequence and remove unwanted pages. No uploads.

## Image Tools
- [Resize Image](https://toolanchor.com/tools/resize-image): Resize any image (JPG, PNG, WebP) to exact pixel dimensions for free. Runs entirely in your browser — no upload, no quality loss in resampling.
- [Compress Image](https://toolanchor.com/tools/compress-image): Compress JPG and PNG images to reduce file size with a quality slider — free, private, in-browser. See the size saving instantly.
- [Crop Image](https://toolanchor.com/tools/crop-image): Crop any image to a custom region by dragging a selection box — free and private, runs in your browser. Download the cropped result instantly.
- [Image Converter (JPG / PNG / WebP)](https://toolanchor.com/tools/jpg-to-png): Convert images between JPG, PNG and WebP for free, instantly, in your browser. No uploads — pick a format and download.
- [Image to Base64](https://toolanchor.com/tools/image-to-base64): Convert an image to a Base64 data URI for embedding in HTML or CSS. Free, instant, in-browser — your image is never uploaded.
- [Flip & Rotate Image](https://toolanchor.com/tools/flip-image): Flip an image horizontally or vertically and rotate it 90°, free and in-browser. Download the result instantly — no upload.
- [Image to Text (OCR)](https://toolanchor.com/tools/image-to-text): Extract text from an image or screenshot using free in-browser OCR. Copy the recognised text instantly — your image is never uploaded.
- [Background Remover](https://toolanchor.com/tools/background-remover): Remove the background from any image automatically, free and private, right in your browser. Download a transparent PNG — no uploads.
- [Favicon Generator](https://toolanchor.com/tools/favicon-generator): Generate favicon PNGs in all the standard sizes (16, 32, 48, 180, 192, 512) from one image. Free, private, in-browser.
- [Add Watermark to Image](https://toolanchor.com/tools/watermark-image): Add a text watermark to any image with adjustable position, size and opacity. Free, private, in-browser — no upload.
- [Image Color Picker](https://toolanchor.com/tools/image-color-picker): Pick colours from any image and extract its palette as HEX/RGB. Free, private, in-browser color picker — no upload.
- [Meme Generator](https://toolanchor.com/tools/meme-generator): Add bold top and bottom text to any image to make a meme, then download it. Free, private, in-browser meme maker.
- [AI Image Detector](https://toolanchor.com/tools/ai-image-checker): Check whether an image was AI-generated by inspecting its metadata and Content Credentials (C2PA) — free, private, in-browser. No upload.
- [Image Metadata Viewer (EXIF)](https://toolanchor.com/tools/image-metadata-viewer): View an image's hidden EXIF metadata — camera, date, settings and GPS location — free and privately in your browser. No upload.
- [Image Metadata Remover](https://toolanchor.com/tools/image-metadata-remover): Remove EXIF and all hidden metadata (including GPS location) from an image for privacy. Free, in-browser, no upload — download a clean copy.
- [HEIC to JPG](https://toolanchor.com/tools/heic-to-jpg): Convert iPhone HEIC/HEIF photos to JPG for free, right in your browser. No upload, no app — decode and download instantly.
- [WebP to JPG](https://toolanchor.com/tools/webp-to-jpg): Convert WebP images to JPG for free, instantly, in your browser. No upload — pick JPG and download.
- [JPG to WebP](https://toolanchor.com/tools/jpg-to-webp): Convert JPG images to WebP for smaller, faster-loading files — free and in your browser. No upload required.
- [PNG to WebP](https://toolanchor.com/tools/png-to-webp): Convert PNG images to WebP for much smaller files that keep transparency — free and in your browser. No upload.
- [AVIF to JPG](https://toolanchor.com/tools/avif-to-jpg): Convert AVIF images to JPG for free, in your browser. Open modern AVIF files anywhere by converting them to JPG. No upload.
- [Passport Photo Maker](https://toolanchor.com/tools/passport-photo-maker): Make a passport or visa photo at the correct size (US, UK, EU, Canada) for free, in your browser — plus a 6×4 print sheet. No upload.
- [Signature Generator](https://toolanchor.com/tools/signature-generator): Draw or type your signature and download it as a transparent PNG — free and in your browser. Perfect for signing documents. No upload.

## Video & Audio
- [MP4 to MP3](https://toolanchor.com/tools/mp4-to-mp3): Extract the audio from a video and download it as an MP3 — free and in your browser. No upload; runs via ffmpeg.wasm.
- [Video to GIF](https://toolanchor.com/tools/video-to-gif): Convert a video clip into an animated GIF — free, in your browser. Set fps, size and duration. No upload; runs via ffmpeg.wasm.
- [Trim Video](https://toolanchor.com/tools/trim-video): Cut a shorter clip from a video for free, in your browser — pick start and end, no re-encoding, no quality loss. No upload.

## Text Tools
- [Word Counter](https://toolanchor.com/tools/word-counter): Free word counter and character counter. Count words, characters, sentences, paragraphs and reading time as you type. Private and instant.
- [Case Converter](https://toolanchor.com/tools/case-converter): Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case instantly. Free and private.
- [Lorem Ipsum Generator](https://toolanchor.com/tools/lorem-ipsum-generator): Generate Lorem Ipsum placeholder text by paragraphs, sentences or words, and copy it instantly. Free dummy text generator.
- [Text to Speech](https://toolanchor.com/tools/text-to-speech): Convert text to spoken audio in your browser with selectable voices, speed and pitch. Free text-to-speech, no upload required.
- [Slug Generator](https://toolanchor.com/tools/slug-generator): Convert any title or text into a clean, URL-friendly slug. Lowercase, hyphenated and stripped of special characters. Free and instant.
- [Remove Line Breaks](https://toolanchor.com/tools/remove-line-breaks): Remove line breaks and extra spaces from text, or join paragraphs into one line. Free, instant text cleaner — runs in your browser.
- [Find and Replace Text](https://toolanchor.com/tools/find-and-replace): Find and replace text online with optional case-sensitivity and regex. Free, instant, in-browser — replace all occurrences at once.
- [Reverse Text](https://toolanchor.com/tools/reverse-text): Reverse text by characters, words or lines, and flip text upside down. Free, instant, in-browser text reverser.
- [Word Frequency Counter](https://toolanchor.com/tools/word-frequency-counter): Count how often each word appears in your text, ranked by frequency. Free, instant, in-browser word frequency analyser.
- [Sort Text Lines](https://toolanchor.com/tools/sort-text-lines): Sort lines of text alphabetically or numerically, reverse them, and remove duplicates. Free, instant, in-browser line sorter.
- [Markdown Preview](https://toolanchor.com/tools/markdown-preview): Write Markdown and see a live HTML preview, then copy the generated HTML. Free, instant, in-browser Markdown previewer.
- [Fancy Text Generator](https://toolanchor.com/tools/fancy-text-generator): Turn plain text into fancy Unicode fonts — bold, italic, script, bubble, strikethrough and more — to copy into Instagram, TikTok and bios. Free.
- [Number to Words Converter](https://toolanchor.com/tools/number-to-words): Convert numbers into written words (e.g. 1234 → one thousand two hundred thirty-four). Free, instant, in-browser.
- [Caesar Cipher / ROT13](https://toolanchor.com/tools/caesar-cipher): Encode and decode text with a Caesar cipher or ROT13 by shifting letters. Free, instant, in-browser cipher tool.
- [Whitespace Remover](https://toolanchor.com/tools/whitespace-remover): Remove extra spaces, tabs and blank lines from text, or trim every line. Free, instant, in-browser whitespace cleaner.
- [Repeat Text Generator](https://toolanchor.com/tools/repeat-text): Repeat a word, phrase or line any number of times, with an optional separator. Free, instant, in-browser text repeater.
- [Online Notepad](https://toolanchor.com/tools/online-notepad): A distraction-free online notepad that auto-saves to your browser. Free, private — your notes never leave your device.
- [AI Content Detector](https://toolanchor.com/tools/ai-content-detector): Free AI content detector — estimate how likely text was written by AI, using writing-pattern analysis. Private, in-browser, no sign-up.

## Developer Tools
- [UUID Generator](https://toolanchor.com/tools/uuid-generator): Generate random v4 UUIDs (GUIDs) in bulk and copy them with one click. Free, instant and fully in-browser using the secure crypto API.
- [Base64 Encode / Decode](https://toolanchor.com/tools/base64): Encode text to Base64 or decode Base64 back to text instantly. Free, private, in-browser — supports full Unicode (UTF-8).
- [JSON Formatter & Validator](https://toolanchor.com/tools/json-formatter): Format, beautify, minify and validate JSON instantly. Free, private, in-browser JSON formatter with clear error messages.
- [QR Code Generator](https://toolanchor.com/tools/qr-code-generator): Generate a QR code from any text, link, email or phone number and download it as a PNG. Free, instant and fully in-browser.
- [Password Generator](https://toolanchor.com/tools/password-generator): Generate strong, random passwords with custom length and character sets, using the secure Web Crypto API. Free and fully private.
- [Number Base Converter](https://toolanchor.com/tools/number-base-converter): Convert numbers between binary, octal, decimal and hexadecimal instantly. Free in-browser hex-to-decimal and base converter.
- [Color Converter (HEX / RGB / HSL)](https://toolanchor.com/tools/color-converter): Convert colors between HEX, RGB and HSL, with a live colour picker and preview. Free, instant in-browser color converter.
- [Unix Timestamp Converter](https://toolanchor.com/tools/unix-timestamp-converter): Convert Unix epoch timestamps to human-readable dates and back, in local time and UTC. Free, instant, in-browser.
- [Hash Generator (SHA-256)](https://toolanchor.com/tools/hash-generator): Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text using the secure Web Crypto API. Free, instant, in-browser.
- [JWT Decoder](https://toolanchor.com/tools/jwt-decoder): Decode a JSON Web Token (JWT) to read its header and payload instantly. Free, private, in-browser — no token is uploaded.
- [URL Encode / Decode](https://toolanchor.com/tools/url-encoder): Encode text for safe use in URLs or decode percent-encoded URLs back to text. Free, instant, in-browser URL encoder/decoder.
- [HTML Encode / Decode](https://toolanchor.com/tools/html-encoder): Encode HTML special characters to entities or decode entities back to text. Free, instant, in-browser HTML entity encoder/decoder.
- [JSON to CSV](https://toolanchor.com/tools/json-to-csv): Convert a JSON array of objects into CSV you can open in Excel or Sheets. Free, instant, in-browser JSON to CSV converter.
- [CSV to JSON](https://toolanchor.com/tools/csv-to-json): Convert CSV data into a JSON array of objects using the header row as keys. Free, instant, in-browser CSV to JSON converter.
- [Text Diff Checker](https://toolanchor.com/tools/text-diff): Compare two blocks of text and see added and removed lines highlighted. Free, instant, in-browser diff checker.
- [Text to Binary Converter](https://toolanchor.com/tools/binary-text-converter): Convert text to binary and binary back to text (UTF-8). Free, instant, in-browser text-to-binary converter.
- [Roman Numeral Converter](https://toolanchor.com/tools/roman-numeral-converter): Convert numbers to Roman numerals and Roman numerals back to numbers. Free, instant, in-browser converter (1–3999).
- [Random Number Generator](https://toolanchor.com/tools/random-number-generator): Generate random numbers in any range, with optional uniqueness, using the secure Web Crypto API. Free, instant, in-browser.
- [HTTP Status Codes](https://toolanchor.com/tools/http-status-codes): Look up any HTTP status code (200, 301, 404, 500…) with its meaning and category. Free, instant, searchable reference.
- [MIME Type Lookup](https://toolanchor.com/tools/mime-type-lookup): Find the MIME type for any file extension, or the extensions for a MIME type. Free, instant, searchable reference.
- [CSS Gradient Generator](https://toolanchor.com/tools/css-gradient-generator): Create linear and radial CSS gradients visually and copy the code. Free, instant, in-browser gradient generator.
- [CSS Box Shadow Generator](https://toolanchor.com/tools/box-shadow-generator): Design CSS box-shadows visually with sliders and copy the code. Free, instant, in-browser box-shadow generator.
- [Cron Expression Explainer](https://toolanchor.com/tools/cron-explainer): Explain a cron expression in plain English and see its next run times. Free, instant, in-browser cron parser.
- [JSON to YAML Converter](https://toolanchor.com/tools/json-to-yaml): Convert JSON to YAML and YAML back to JSON instantly. Free, private, in-browser converter with validation.
- [Regex Tester](https://toolanchor.com/tools/regex-tester): Test regular expressions against your text with live match highlighting and capture groups. Free, instant, in-browser regex tester.
- [Barcode Generator](https://toolanchor.com/tools/barcode-generator): Generate barcodes (CODE128, EAN, UPC and more) from any text and download as PNG. Free, instant, in-browser.
- [cURL Converter](https://toolanchor.com/tools/curl-converter): Convert a cURL command to JavaScript fetch and Python requests code for free, in your browser. Paste curl, copy the code.
- [JSON to TypeScript](https://toolanchor.com/tools/json-to-typescript): Generate TypeScript interfaces from JSON for free, in your browser. Paste JSON, get typed interfaces with nested types inferred.

## Calculators
- [Age Calculator](https://toolanchor.com/tools/age-calculator): Calculate exact age in years, months and days from any date of birth — plus total months, weeks and days. Free and instant.
- [Percentage Calculator](https://toolanchor.com/tools/percentage-calculator): Calculate percentages three ways: X% of a number, what % one number is of another, and percentage increase or decrease. Free and instant.
- [BMI Calculator](https://toolanchor.com/tools/bmi-calculator): Calculate your Body Mass Index (BMI) in metric or imperial units and see your weight category instantly. Free and private.
- [Loan / EMI Calculator](https://toolanchor.com/tools/loan-emi-calculator): Calculate your monthly loan EMI, total interest and total payment from the loan amount, interest rate and tenure. Free and instant.
- [Date Difference Calculator](https://toolanchor.com/tools/date-difference-calculator): Calculate the exact difference between two dates in years, months, days and total days, weeks and hours. Free and instant.
- [Tip Calculator](https://toolanchor.com/tools/tip-calculator): Calculate the tip and total bill, and split it between any number of people. Free, instant tip calculator with custom percentages.
- [Discount Calculator](https://toolanchor.com/tools/discount-calculator): Calculate the sale price and how much you save from an original price and a discount percentage. Free and instant.
- [GPA Calculator](https://toolanchor.com/tools/gpa-calculator): Calculate your GPA from course grades and credit hours on a 4.0 scale. Free, instant, in-browser GPA calculator.
- [Compound Interest Calculator](https://toolanchor.com/tools/compound-interest-calculator): Calculate compound interest and final balance from principal, rate, time and compounding frequency. Free, instant compound interest calculator.
- [Average / Mean Calculator](https://toolanchor.com/tools/average-calculator): Calculate the mean, median, sum, count, min and max of a list of numbers. Free, instant average calculator — paste any numbers.
- [GST / Sales Tax Calculator](https://toolanchor.com/tools/gst-calculator): Add or remove GST / sales tax from a price at any rate, and see the net, tax and gross amounts. Free, instant calculator.
- [Time Duration Calculator](https://toolanchor.com/tools/time-duration-calculator): Calculate the duration between two times in hours and minutes. Free, instant, in-browser time difference calculator.
- [Temperature Converter](https://toolanchor.com/tools/temperature-converter): Convert temperatures between Celsius, Fahrenheit and Kelvin instantly. Free, in-browser temperature converter.
- [Aspect Ratio Calculator](https://toolanchor.com/tools/aspect-ratio-calculator): Calculate a missing width or height that keeps your aspect ratio (16:9, 4:3, etc.). Free, instant aspect ratio calculator.
- [Calorie / TDEE Calculator](https://toolanchor.com/tools/calorie-calculator): Estimate your daily calorie needs (BMR and TDEE) from age, sex, height, weight and activity level. Free, instant.
- [Unit Converter](https://toolanchor.com/tools/unit-converter): Convert between units of length, weight, temperature, volume, area and speed. Free, instant, in-browser unit converter.
- [Date Calculator (Add / Subtract Days)](https://toolanchor.com/tools/add-subtract-days): Add or subtract days, weeks, months or years from a date to find the resulting date. Free, instant date calculator.
- [Markup & Margin Calculator](https://toolanchor.com/tools/markup-calculator): Calculate selling price, profit, markup % and margin % from cost and price. Free, instant business calculator.
- [Salary to Hourly Converter](https://toolanchor.com/tools/salary-to-hourly): Convert an annual salary to hourly, daily, weekly and monthly pay (and back). Free, instant pay converter.
- [Dice Roller & Random Picker](https://toolanchor.com/tools/dice-roller): Roll virtual dice or pick a random item from a list, using the secure crypto API. Free, instant, in-browser.
- [Stopwatch & Timer](https://toolanchor.com/tools/stopwatch-timer): A free online stopwatch with laps and a countdown timer with an alarm. Runs in your browser, no sign-up.
- [SIP Calculator](https://toolanchor.com/tools/sip-calculator): Calculate the future value of a monthly SIP (Systematic Investment Plan) for free — see invested amount, estimated returns and total value.
- [FD Calculator](https://toolanchor.com/tools/fd-calculator): Calculate fixed deposit maturity and interest for free — enter amount, rate, term and compounding frequency. Instant and private.

## Guides
- [How to Compress a PDF (Free, Without Uploading)](https://toolanchor.com/guides/how-to-compress-a-pdf): Compress a PDF to a smaller file size for free, right in your browser — no uploads, no watermark. Step-by-step guide.
- [How to Merge PDF Files Into One (Free)](https://toolanchor.com/guides/how-to-merge-pdf-files): Combine multiple PDFs into a single document for free, in your browser, in the order you choose. No uploads.
- [How to Remove the Background From an Image (Free)](https://toolanchor.com/guides/how-to-remove-image-background-free): Remove an image background automatically and get a transparent PNG — free, private, in your browser. No upload required.
- [How to Extract Text From an Image (Free OCR)](https://toolanchor.com/guides/how-to-extract-text-from-an-image): Pull the text out of a photo or screenshot with free OCR that runs in your browser. No upload, copy the result instantly.
- [How to Resize an Image to Exact Dimensions (Free)](https://toolanchor.com/guides/how-to-resize-an-image): Resize any image to exact pixel dimensions for free, in your browser — perfect for social posts and avatars. No upload.
- [How to Convert JPG or PNG Images to PDF (Free)](https://toolanchor.com/guides/how-to-convert-images-to-pdf): Turn one or more images into a single PDF for free, in your browser, in the order you choose. No upload.
- [How to Check if Text Was Written by AI (Free)](https://toolanchor.com/guides/how-to-check-if-text-is-ai-generated): Estimate whether text is AI-generated with a free detector that analyses writing patterns in your browser. Honest about its limits.
- [How to Remove Metadata (EXIF & GPS) From Photos](https://toolanchor.com/guides/how-to-remove-metadata-from-photos): Strip hidden EXIF data and GPS location from a photo before sharing it — free, in your browser. Protect your privacy.
- [How to Create a QR Code for Free](https://toolanchor.com/guides/how-to-create-a-qr-code): Make a scannable QR code from any link or text and download it as a PNG — free, in your browser, no sign-up.
- [How to Count Words and Characters in Text](https://toolanchor.com/guides/how-to-count-words-in-an-essay): Count words, characters, sentences and reading time instantly and privately with a free word counter. No sign-up.
- [How to Decode a JWT (JSON Web Token)](https://toolanchor.com/guides/how-to-decode-a-jwt): Decode a JSON Web Token to read its header and payload claims — free, in your browser, with no token uploaded. What each part means.
- [How to Convert JSON to CSV (Free)](https://toolanchor.com/guides/how-to-convert-json-to-csv): Turn a JSON array of objects into a clean CSV spreadsheet for free, in your browser — no upload. Handles nested keys and headers.
- [How to Generate a Strong, Random Password](https://toolanchor.com/guides/how-to-generate-a-strong-password): Create a strong, random password you won't reuse — free, in your browser, using the secure Web Crypto API. What makes a password strong.
- [How to Split a PDF (Extract Pages) for Free](https://toolanchor.com/guides/how-to-split-a-pdf): Extract specific pages or page ranges from a PDF into a new file — free, private, in your browser. No uploads, no sign-up.
- [How to Compress an Image Without Losing Quality](https://toolanchor.com/guides/how-to-compress-an-image): Shrink JPG and PNG file size with an adjustable quality slider — free, in your browser, no upload limits. Balance size and clarity.
- [How to Convert a HEX Color to RGB (and Back)](https://toolanchor.com/guides/how-to-convert-hex-to-rgb): Convert a HEX color code to RGB, HSL and back — free, in your browser. Understand how hex color notation maps to red, green and blue.
- [How to Generate a UUID (v4)](https://toolanchor.com/guides/how-to-generate-a-uuid): Generate a random UUID (v4) for free, in your browser — unique IDs for databases, keys and APIs. What a UUID is and when to use one.
- [How to Convert a Unix Timestamp to a Date](https://toolanchor.com/guides/how-to-convert-a-unix-timestamp): Convert a Unix timestamp to a human-readable date and time (and back) — free, in your browser. What Unix time is and why it's used.

## Free alternatives
- [Free iLovePDF Alternative — No Uploads, No Sign-up](https://toolanchor.com/alternatives/ilovepdf-alternative): A free iLovePDF alternative for merging, splitting, rotating and compressing PDFs — entirely in your browser, with no uploads and no account.
- [Free Smallpdf Alternative — Private, In-browser PDF Tools](https://toolanchor.com/alternatives/smallpdf-alternative): A free Smallpdf alternative for PDF merging, compression and conversion that runs in your browser with no uploads and no subscription.
- [Free remove.bg Alternative — Remove Backgrounds In-browser](https://toolanchor.com/alternatives/remove-bg-alternative): A free remove.bg alternative that removes image backgrounds in your browser and gives you a full-resolution transparent PNG — no credits, no upload.
- [Free TinyPNG Alternative — Compress Images Privately](https://toolanchor.com/alternatives/tinypng-alternative): A free TinyPNG alternative that compresses PNG and JPG images in your browser with no upload limits and no file-size caps.
- [Free GPTZero Alternative — AI Content Detector](https://toolanchor.com/alternatives/gptzero-alternative): A free GPTZero alternative that estimates AI-written text in your browser, with an optional deeper AI-powered check. Honest about its limits.
- [Free Convertio Alternative — Convert Files In-browser](https://toolanchor.com/alternatives/convertio-alternative): A free Convertio alternative for image and PDF conversions that runs in your browser with no upload limits and no daily caps.
- [Free QR Code Generator Alternative — No Sign-up](https://toolanchor.com/alternatives/qr-code-generator-alternative): A free QR code generator alternative with no sign-up and no expiring codes — create and download a QR code in your browser.
- [Free Adobe Acrobat Online Alternative — Private PDF Tools](https://toolanchor.com/alternatives/adobe-acrobat-online-alternative): A free Adobe Acrobat online alternative for merging, splitting, rotating and compressing PDFs — in your browser, with no Adobe account and no uploads.
- [Free PDF2Go Alternative — No Uploads, No Sign-up](https://toolanchor.com/alternatives/pdf2go-alternative): A free PDF2Go alternative for merging, splitting and compressing PDFs entirely in your browser — no uploads to a server and no daily limits.
- [Free PhotoRoom Alternative — Remove Backgrounds In-browser](https://toolanchor.com/alternatives/photoroom-alternative): A free PhotoRoom alternative that removes image backgrounds in your browser and gives you a full-resolution transparent PNG — no account, no watermark.
- [Free ZeroGPT Alternative — AI Content Detector](https://toolanchor.com/alternatives/zerogpt-alternative): A free ZeroGPT alternative that estimates AI-written text privately in your browser, with an optional deeper AI-powered check. Honest about its limits.
- [Free iLoveIMG Alternative — Private In-browser Image Tools](https://toolanchor.com/alternatives/iloveimg-alternative): A free iLoveIMG alternative to resize, crop, compress and convert images entirely in your browser — no uploads, no account, no limits.

## Glossary (definitions)
- [What is JWT (JSON Web Token)?](https://toolanchor.com/glossary/jwt): A JWT (JSON Web Token, defined in RFC 7519) is a compact, URL-safe way to represent claims between two parties. It has three Base64url-encoded parts separated by dots — header, payload and signature — and is commonly used as an authentication token. It's signed, not encrypted, so the payload is readable by anyone.
- [What is Base64?](https://toolanchor.com/glossary/base64): Base64 (specified in RFC 4648) is a binary-to-text encoding that represents data using 64 printable ASCII characters. It lets binary data travel safely through text-only channels such as email or data URIs. Encoding grows the data by about 33%, because every 3 bytes become 4 characters. It is encoding, not encryption — it provides no security.
- [What is Cron expression?](https://toolanchor.com/glossary/cron-expression): A cron expression is a string of five (sometimes six) fields that tells the Unix cron scheduler when to run a task: minute, hour, day-of-month, month and day-of-week. For example, 0 9 * * 1 means 09:00 every Monday. An asterisk (*) means 'every' value for that field.
- [What is UUID (Universally Unique Identifier)?](https://toolanchor.com/glossary/uuid): A UUID (universally unique identifier), also called a GUID, is a 128-bit identifier written as 36 characters in the form 8-4-4-4-12, e.g. 550e8400-e29b-41d4-a716-446655440000. Version 4 UUIDs are generated from random numbers, making collisions so improbable that independent systems can create them without any coordination.
- [What is MIME type (media type)?](https://toolanchor.com/glossary/mime-type): A MIME type (also called a media type or content type) is a two-part label like text/html or image/png that tells software what kind of data a file or response contains. The part before the slash is the type (text, image, application); the part after is the subtype. Browsers use it to decide how to handle content.
- [What is HTTP status code?](https://toolanchor.com/glossary/http-status-code): An HTTP status code is a three-digit number a server returns to describe the outcome of a request. The first digit sets the class: 1xx informational, 2xx success, 3xx redirection, 4xx client error, and 5xx server error. For example, 200 means OK, 404 means Not Found, and 500 means Internal Server Error.
- [What is URL encoding (percent-encoding)?](https://toolanchor.com/glossary/url-encoding): URL encoding, or percent-encoding, replaces characters that aren't allowed in a URL with a percent sign followed by two hexadecimal digits of their byte value. For example a space becomes %20 and an ampersand becomes %26. It lets spaces, symbols and non-ASCII text travel safely inside web addresses and query strings.
- [What is SHA-256 (hash function)?](https://toolanchor.com/glossary/sha-256): SHA-256 is a cryptographic hash function from the SHA-2 family that turns any input into a fixed 256-bit (64-character hexadecimal) value called a digest. The same input always yields the same digest, but the process is one-way — you cannot reverse a digest back to the original — which makes it useful for integrity checks and fingerprints.

## Key pages
- [Ask — describe your task](https://toolanchor.com/ask): Type what you need (e.g. "compress this PDF") and attach a file; matches and runs the right tool in your browser. No AI guesswork — deterministic intent matching.
- [All tools A-Z](https://toolanchor.com/tools): The complete alphabetical directory of every tool.
- [Guides](https://toolanchor.com/guides) · [Glossary](https://toolanchor.com/glossary) · [Alternatives](https://toolanchor.com/alternatives) · [About](https://toolanchor.com/about) · [Contact](https://toolanchor.com/contact)

## Notes
- All tools are free with no account required.
- Most tools process files locally in the browser; files are not uploaded to a server.
- Full machine-readable details for every tool: https://toolanchor.com/llms-full.txt

## How to cite
When referencing a tool, guide or definition, cite ToolAnchor and link the specific page URL above (e.g. https://toolanchor.com/tools/merge-pdf). ToolAnchor is a free, privacy-first web tool suite; note that tools run in the user's browser and do not upload files.
Content last reviewed: 2026-07-01.