Free online tools that run in your browser
121 free tools for images, PDF, text, code, design, websites and everyday calculations. Fast, simple and private.
Everything runs in your browser. Your images, documents and text are never uploaded to a server.
Image & Photo
Image Compressor
Make JPG, PNG and WEBP images smaller, or fit them under a target size.
Image Resizer & Cropper
Resize one or many images, crop to any size or ratio and export as JPG, PNG or WEBP.
Image Converter
Convert images between JPG, PNG, WEBP, AVIF, GIF, BMP, TIFF, JPEG XL, SVG, PDF and ICO (favicon). Also reads HEIC.
Photo Editor
Adjust brightness, contrast, colours and sharpness, or apply a filter (B&W, sepia, vintage…), for one or many photos.
Image to Text (OCR)
Extract text from photos, scans and screenshots, including Vietnamese. Runs in your browser.
Images to PDF
Combine multiple images into a single PDF file.
Rotate & Flip Image
Rotate images left or right, flip them horizontally or vertically, or rotate by any angle.
Watermark
Add a text or logo watermark to many images at once.
Favicon Generator
Make every favicon size, the Apple and Android icons and the manifest from one image or text.
EXIF Viewer / Remover
See the hidden data in photos (camera, date, GPS location) and remove it.
EXIF Editor
Change the date taken, location, author, copyright and description of JPEG photos, for many at once, without recompressing them.
Image to SVG
Turn logos, drawings and simple pictures into SVG vector graphics that stay sharp at any size.
Image Color Palette
Get the main colors of an image and pick colors from it.
Image Annotator
Add text, shapes, arrows and emoji to an image, then download it.
Photo Collage
Put 2 to 9 photos together in a grid layout: drag to frame each one, spacing, rounded corners, background.
GIF Maker
Make an animated GIF from several images or from a short part of a video, in your browser.
Image Grid Splitter
Cut a picture into a grid of tiles (3×1, 3×3…) for Instagram posts, carousels or prints.
ID Photo Maker
Make passport and ID photos from a portrait: AI background change (white, blue…), standard sizes framed on the face, a print sheet of copies.
Profile Picture Maker
Make a round or square profile picture: frame the photo, zoom, add a border, export PNG.
Screenshot Beautifier
Put screenshots on a gradient background with rounded corners, shadow and a browser frame.
Placeholder Image Generator
Create dummy images of any size, color and border for mockups: text, an image icon or a person avatar (grey or white).
Batch Image Renamer
Rename many images at once with a prefix, suffix and numbering pattern.
Merge PDF
Combine several PDF files into one, in the order you choose.
Split & Organize PDF
Split a PDF, extract, rotate, delete or reorder its pages.
Compress PDF
Make PDFs smaller by compressing the images inside and rewriting the file compactly, in your browser. Text stays selectable.
Sign PDF
Draw, type or upload your signature and place it on the pages of a PDF, in your browser.
Add Page Numbers
Add page numbers, headers and footers to PDFs: position, format, start number, pages.
Watermark PDF
Stamp a text or logo on PDF pages: opacity, angle, position or repeated over the page.
PDF Page Size & Crop
Put PDF pages on A4, Letter… or crop their margins, automatically or by hand.
PDF to Images
Turn PDF pages into PNG, JPG or WEBP images.
PDF to Text
Get the text out of a PDF as plain text or Markdown, page by page; scanned pages can be read with OCR.
Extract Images from PDF
Save the pictures inside a PDF in their original quality (JPEG as stored, others as PNG).
Compare PDF
Compare the text of two PDF versions: added, removed and changed words, page by page.
Unlock PDF
Remove the password or the print / copy restrictions from PDFs you own, right in your browser. It never guesses or cracks unknown passwords.
Protect PDF
Add a password to open your PDFs and / or restrict printing, copying and editing (AES-256), in your browser.
Repair PDF
Rebuild damaged PDFs that will not open (broken or missing structure), in your browser.
PDF Metadata
View, edit or remove the hidden information in PDFs: title, author, software, dates.
QR & Barcode
Text
Word & Character Counter
Count words, characters and lines in any text.
Text Case Converter
Convert text to UPPERCASE, lowercase or Title Case, or reverse it.
Text Diff
Compare two texts and highlight what was added, removed or changed.
Find & Replace
Replace text in bulk with several rules, whole words, case or regular expressions.
Line Tools
Sort lines, remove duplicates and empty lines, reverse, shuffle, filter and number them.
Lorem Ipsum Generator
Generate placeholder text as paragraphs or lists.
Slug Generator
Turn titles into clean URL slugs, Vietnamese accents included.
HTML Tag Remover
Strip all HTML tags and keep only the text.
Number & Amount Extractor
Find every number, amount of money and percentage in a text or file: total, average, median, min, max and more.
Subtitle Maker (SRT)
Make .srt / .vtt subtitles: time a script by reading speed, recognize speech in a video or audio file with AI, or edit an existing file.
AI
Token Counter
Count the tokens of a text for ChatGPT and other AI models, see how it is split and how much of a context window it fills.
AI API Cost Calculator
Estimate the cost of Claude, GPT and Gemini API calls per request, per day and per month, with caching and batch discounts.
AI Text Cleaner
Clean text copied from ChatGPT and other chatbots: hidden characters, odd spaces, citation marks, Markdown, curly quotes and filler lines.
Prompt Builder
Write clear prompts for AI from a form: role, context, task, rules, examples and output format, with templates and variables.
AI Image Upscaler
Enlarge photos 2× or 4× with AI: sharper than normal resizing, with a before / after comparison.
AI Spot Remover
Paint over a spot, logo or date once and remove it from many images at once with AI, sharing one mask or adjusting it per image.
Face Blur
Find and blur every face in your photos automatically, or hide them with pixels, a solid box or an emoji, before sharing.
Audio Noise Remover
Remove background noise (fans, traffic, hum, crowd) from voice recordings and videos with AI, then download a WAV file.
Text to Speech
Have any text read aloud with the voices of your device, in many languages, with adjustable speed and pitch.
Similar Sentence Finder
Group lines that mean the same thing, remove duplicates by meaning, or search a list by meaning, in any language, with AI.
Language Detector
Find out which language a text is written in, out of 110 languages, for the whole text or paragraph by paragraph.
AI Image Inspector
Check whether an image says it was made with AI: read Stable Diffusion / ComfyUI prompts, IPTC AI labels and Content Credentials (C2PA).
Calculators
Percentage & VAT Calculator
Everyday percentages, VAT before and after tax, and discounts.
Unit Converter
Convert length, weight, temperature, area, volume, speed, data size and time.
Date Calculator
Calculate age, days between dates, add or subtract days and count working days.
Time Zone Converter
Convert times between cities and find a meeting time that suits everyone.
Random
Developer
JSON / XML / CSV Converter
Convert data between JSON, XML and CSV.
Code Beautifier
Format HTML, CSS and JavaScript code so it is easy to read.
Regex Tester
Test regular expressions: highlighted matches, capture groups and replacements.
Unix Timestamp Converter
Convert Unix timestamps to dates and back, in local time or UTC.
UUID Generator
Generate random v4 or time-ordered v7 UUIDs, and inspect any UUID.
Code Minifier
Minify HTML, CSS and JavaScript to make files smaller.
YAML ↔ JSON Converter
Convert YAML to JSON and back, with the line and column of syntax errors.
SQL Formatter
Format or minify SQL for MySQL, PostgreSQL, SQL Server, Oracle and more.
URL Parser
Break a URL into protocol, host, domain, path, file name and more.
Number Base Converter
Convert numbers between binary, octal, decimal, hex and any base 2–36.
Folder Tree Generator
Turn an indented list, paths or a real folder into a folder tree diagram, with icons by file type.
Encode & Decode
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text.
Hash Generator
Create MD5, SHA-1 and SHA-256 hashes of any text.
URL Encode / Decode
Percent-encode text for URLs or decode it back.
JWT Decoder
Read the header and payload of a JSON Web Token and check its expiry.
Image ↔ Base64
Convert an image to a Base64 data URI, or a Base64 string back to an image.
HTML Entity Encode / Decode
Convert special characters like & and < to HTML entities and back.
Design
Color Converter
Convert colors between HEX, RGB, HSL, HSV and CMYK.
Color Palette Generator
Build color harmonies and 50–950 shade scales, then export CSS, SCSS or Tailwind.
Color Wheel
Pick colour harmonies on an interactive colour wheel and preview them on a sample interface.
CSS Gradient Generator
Create linear, radial and conic gradients with many color stops and copy the CSS.
Contrast Checker
Check text and background colors against WCAG AA / AAA.
Box Shadow Generator
Design CSS box shadows with several layers, inset and live preview.
px ↔ rem Converter
Convert px, rem, em, pt, % and vw, and turn a whole stylesheet from px into rem.
Language
Webmaster & SEO
Meta Tag / Open Graph Generator
Create SEO meta tags, Open Graph and Twitter cards with a live preview.
UTM Builder
Add utm_source, utm_medium, utm_campaign… to links, for many links at once.
Schema JSON-LD Generator
Create structured data for organizations, articles, products, FAQ, breadcrumbs, events and more.
llms.txt Generator
Create an llms.txt file that tells AI assistants what your website is about and which pages matter.
Robots.txt Generator
Create a robots.txt file to control search engine crawlers.
Sitemap Generator
Create a sitemap.xml file from a list of URLs.
.htaccess Generator
Create .htaccess rules for redirects, HTTPS, caching and more.
Crontab Generator
Build cron schedule expressions with simple options.
Markdown
Markdown Editor & Preview
Write Markdown with a toolbar and see the result live. Export .md, .html or PDF.
Markdown to HTML
Convert Markdown into clean HTML code for websites and CMS.
HTML to Markdown
Turn HTML or content copied from a web page into Markdown.
Markdown Table Generator
Build Markdown tables in a grid or paste from Excel, Google Sheets or CSV.
Mermaid Diagram Editor
Draw flowcharts, sequence diagrams and more from Mermaid code. Export SVG or PNG.
Markdown to Plain Text
Remove Markdown symbols and keep only the text.
Markdown Formatter
Clean up and format Markdown files consistently.
Markdown TOC Generator
Create a table of contents with working links from your headings.
README Generator
Fill in a form and get a complete README.md for your project.
Legal
Privacy Policy Generator
Generate a privacy policy for your website.
Terms & Conditions Generator
Generate terms and conditions for your website.
Disclaimer Generator
Generate a disclaimer for your website.
Terms of Service Generator
Generate terms of service for an online service, SaaS or app: plans and payments, free trial, customer data, API.
Refund Policy Generator
Generate a return and refund policy for an online shop: physical goods, digital products, subscriptions.
Cookie Policy Generator
Generate a cookie policy with the cookies of Google Analytics, AdSense, Meta Pixel and YouTube.
AI Use Policy Generator
Generate a policy explaining how your website or business uses AI: AI content, AI features, chatbot, data.