All tools — A to Z
Every tool on ToolAnchor in one place — 87 and counting. Jump to a letter, scroll the lot, or filter instantly below.
Add Watermark to Image
Add a text watermark to any image with adjustable position, size and opacity. Free, private, in-browser — no upload.
Age Calculator
Calculate exact age in years, months and days from any date of birth — plus total months, weeks and days. Free and instant.
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.
AI Image Detector
Check whether an image was AI-generated by inspecting its metadata and Content Credentials (C2PA) — free, private, in-browser. No upload.
Aspect Ratio Calculator
Calculate a missing width or height that keeps your aspect ratio (16:9, 4:3, etc.). Free, instant aspect ratio calculator.
Average / Mean Calculator
Calculate the mean, median, sum, count, min and max of a list of numbers. Free, instant average calculator — paste any numbers.
Background Remover
Remove the background from any image automatically, free and private, right in your browser. Download a transparent PNG — no uploads.
Barcode Generator
Generate barcodes (CODE128, EAN, UPC and more) from any text and download as PNG. Free, instant, in-browser.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text instantly. Free, private, in-browser — supports full Unicode (UTF-8).
BMI Calculator
Calculate your Body Mass Index (BMI) in metric or imperial units and see your weight category instantly. Free and private.
Caesar Cipher / ROT13
Encode and decode text with a Caesar cipher or ROT13 by shifting letters. Free, instant, in-browser cipher tool.
Calorie / TDEE Calculator
Estimate your daily calorie needs (BMR and TDEE) from age, sex, height, weight and activity level. Free, instant.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case instantly. Free and private.
Color Converter (HEX / RGB / HSL)
Convert colors between HEX, RGB and HSL, with a live colour picker and preview. Free, instant in-browser color converter.
Compound Interest Calculator
Calculate compound interest and final balance from principal, rate, time and compounding frequency. Free, instant compound interest calculator.
Compress Image
Compress JPG and PNG images to reduce file size with a quality slider — free, private, in-browser. See the size saving instantly.
Compress PDF
Reduce PDF file size for free, right in your browser. Adjustable quality, no uploads — your file never leaves your device.
Cron Expression Explainer
Explain a cron expression in plain English and see its next run times. Free, instant, in-browser cron parser.
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.
CSS Box Shadow Generator
Design CSS box-shadows visually with sliders and copy the code. Free, instant, in-browser box-shadow generator.
CSS Gradient Generator
Create linear and radial CSS gradients visually and copy the code. Free, instant, in-browser gradient generator.
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.
Date Calculator (Add / Subtract Days)
Add or subtract days, weeks, months or years from a date to find the resulting date. Free, instant date calculator.
Date Difference Calculator
Calculate the exact difference between two dates in years, months, days and total days, weeks and hours. Free and instant.
Dice Roller & Random Picker
Roll virtual dice or pick a random item from a list, using the secure crypto API. Free, instant, in-browser.
Discount Calculator
Calculate the sale price and how much you save from an original price and a discount percentage. Free and instant.
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.
Favicon Generator
Generate favicon PNGs in all the standard sizes (16, 32, 48, 180, 192, 512) from one image. Free, private, in-browser.
Find and Replace Text
Find and replace text online with optional case-sensitivity and regex. Free, instant, in-browser — replace all occurrences at once.
Flip & Rotate Image
Flip an image horizontally or vertically and rotate it 90°, free and in-browser. Download the result instantly — no upload.
Hash Generator (SHA-256)
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text using the secure Web Crypto API. Free, instant, in-browser.
HTML Encode / Decode
Encode HTML special characters to entities or decode entities back to text. Free, instant, in-browser HTML entity encoder/decoder.
HTTP Status Codes
Look up any HTTP status code (200, 301, 404, 500…) with its meaning and category. Free, instant, searchable reference.
Image Color Picker
Pick colours from any image and extract its palette as HEX/RGB. Free, private, in-browser color picker — no upload.
Image Converter (JPG / PNG / WebP)
Convert images between JPG, PNG and WebP for free, instantly, in your browser. No uploads — pick a format and download.
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.
Image Metadata Viewer (EXIF)
View an image's hidden EXIF metadata — camera, date, settings and GPS location — free and privately in your browser. No upload.
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.
Image to Text (OCR)
Extract text from an image or screenshot using free in-browser OCR. Copy the recognised text instantly — your image is never uploaded.
JPG to PDF
Convert JPG, PNG and WebP images into a single PDF document — free and private, with no uploads. Reorder images before converting.
JSON Formatter & Validator
Format, beautify, minify and validate JSON instantly. Free, private, in-browser JSON formatter with clear error messages.
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.
JSON to YAML Converter
Convert JSON to YAML and YAML back to JSON instantly. Free, private, in-browser converter with validation.
JWT Decoder
Decode a JSON Web Token (JWT) to read its header and payload instantly. Free, private, in-browser — no token is uploaded.
Loan / EMI Calculator
Calculate your monthly loan EMI, total interest and total payment from the loan amount, interest rate and tenure. Free and instant.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences or words, and copy it instantly. Free dummy text generator.
Markdown Preview
Write Markdown and see a live HTML preview, then copy the generated HTML. Free, instant, in-browser Markdown previewer.
Markup & Margin Calculator
Calculate selling price, profit, markup % and margin % from cost and price. Free, instant business calculator.
Meme Generator
Add bold top and bottom text to any image to make a meme, then download it. Free, private, in-browser meme maker.
Merge PDF
Combine multiple PDF files into one document in any order — free, fast and 100% private. Files never leave your browser.
MIME Type Lookup
Find the MIME type for any file extension, or the extensions for a MIME type. Free, instant, searchable reference.
Password Generator
Generate strong, random passwords with custom length and character sets, using the secure Web Crypto API. Free and fully private.
PDF to Images (JPG / PNG)
Convert each page of a PDF into a high-quality PNG image and download them. Free, private, in-browser — no uploads.
PDF to Text
Extract all text from a PDF and copy or download it. Free, private, in-browser PDF text extractor — no uploads.
Percentage Calculator
Calculate percentages three ways: X% of a number, what % one number is of another, and percentage increase or decrease. Free and instant.
Random Number Generator
Generate random numbers in any range, with optional uniqueness, using the secure Web Crypto API. Free, instant, in-browser.
Regex Tester
Test regular expressions against your text with live match highlighting and capture groups. Free, instant, in-browser regex tester.
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.
Repeat Text Generator
Repeat a word, phrase or line any number of times, with an optional separator. Free, instant, in-browser text repeater.
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.
Reverse Text
Reverse text by characters, words or lines, and flip text upside down. Free, instant, in-browser text reverser.
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals back to numbers. Free, instant, in-browser converter (1–3999).
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.
Salary to Hourly Converter
Convert an annual salary to hourly, daily, weekly and monthly pay (and back). Free, instant pay converter.
Slug Generator
Convert any title or text into a clean, URL-friendly slug. Lowercase, hyphenated and stripped of special characters. Free and instant.
Sort Text Lines
Sort lines of text alphabetically or numerically, reverse them, and remove duplicates. Free, instant, in-browser line sorter.
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.
Stopwatch & Timer
A free online stopwatch with laps and a countdown timer with an alarm. Runs in your browser, no sign-up.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit and Kelvin instantly. Free, in-browser temperature converter.
Text Diff Checker
Compare two blocks of text and see added and removed lines highlighted. Free, instant, in-browser diff checker.
Text to Binary Converter
Convert text to binary and binary back to text (UTF-8). Free, instant, in-browser text-to-binary converter.
Text to Speech
Convert text to spoken audio in your browser with selectable voices, speed and pitch. Free text-to-speech, no upload required.
Time Duration Calculator
Calculate the duration between two times in hours and minutes. Free, instant, in-browser time difference calculator.
Tip Calculator
Calculate the tip and total bill, and split it between any number of people. Free, instant tip calculator with custom percentages.
Unit Converter
Convert between units of length, weight, temperature, volume, area and speed. Free, instant, in-browser unit converter.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and back, in local time and UTC. Free, instant, in-browser.
URL Encode / Decode
Encode text for safe use in URLs or decode percent-encoded URLs back to text. Free, instant, in-browser URL encoder/decoder.
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.
Whitespace Remover
Remove extra spaces, tabs and blank lines from text, or trim every line. Free, instant, in-browser whitespace cleaner.
Word Counter
Free word counter and character counter. Count words, characters, sentences, paragraphs and reading time as you type. Private and instant.
Word Frequency Counter
Count how often each word appears in your text, ranked by frequency. Free, instant, in-browser word frequency analyser.