Five categories, 45 tools, one consistent rule: the file you drop in does not leave your tab. Pick a section to jump to it, or scroll.
PDFs are usually the most sensitive files you handle in a given month — contracts, IDs, tax records. Every tool in this section runs entirely in your browser, so your document never reaches a server.
Read: Why every PDF tool runs in your browser →Compress, convert, crop, and watermark — all client-side. The libraries that do the heavy lifting (Canvas, WebAssembly codecs, the File API) have been good enough to skip the server for a few years now.
Compress images up to 90% smaller without losing quality.
Convert images between PNG, JPG, WebP, BMP, and GIF instantly in your browser.
Crop images with preset aspect ratios or freeform selection.
Resize photos to exact dimensions with aspect ratio lock.
Add text or logo watermarks to photos with custom position, opacity, and tiling.
Convert HEIC/HEIF photos from iPhone to universal JPG format.
Convert SVG files to high-resolution PNG at any scale.
Generate favicons at every size from any image.
Drop a screenshot and frame it in a device mockup — iPhone, MacBook, iPad, Browser, or Android.
Generate placeholder images with custom dimensions, colors, and text.
The boring-but-essential utilities you reach for when you are mid-task and just need a quick answer: format some JSON, generate an ID, decode a Base64 string, test a regex, hash a string.
Read: Choosing v4 UUIDs vs ULIDs vs nanoid →Paste your JSON and instantly format, validate, or minify it.
Convert JSON arrays of objects to CSV with auto-detected headers.
Encode text or files to Base64, or decode Base64 back to text and files.
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for text or files.
Live regex tester and debugger.
Encode or decode URL strings in real time.
Generate v4 UUIDs instantly.
Compare two texts side by side with line-by-line diff highlighting.
Build cron expressions visually or paste one to decode it.
Generate a robots.
Generate SEO meta tags, Open Graph, and Twitter Card HTML.
Preview how your link appears on Facebook, Twitter, LinkedIn, Discord, and Slack.
Check if your domain's email authentication is set up correctly.
Convert text to binary, hexadecimal, and decimal byte values in real time.
See your public IP address, location, ISP, and timezone instantly.
Convert Markdown to HTML with a live preview.
Full-featured Markdown editor with toolbar, live preview, word count, and export.
Convert between Unix timestamps and human-readable dates.
Color tooling, gradient generators, shadow builders, contrast checkers. The kind of utilities every designer reinvents in their notes app eventually.
Read: The math behind WCAG contrast checking →Pick colors, generate harmonious palettes, and export as HEX, RGB, or HSL.
Build linear and radial CSS gradients visually.
Build CSS box shadows visually with live preview.
Calculate aspect ratios and resize dimensions while keeping proportions.
Test color combinations against WCAG 2.
Word counts, case conversion, passwords, QR codes, invoices, email signatures. The little jobs that come up between the larger ones.
Count words, characters, sentences, paragraphs, and reading time in real-time.
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more.
Generate lorem ipsum placeholder text by paragraphs, sentences, or words.
Generate strong, random passwords with customizable length and character sets.
Generate QR codes with custom colors, rounded corners, and logo embed.
Transform text into 18 Unicode styles — bold, cursive, gothic, aesthetic, and more.
Create and download professional PDF invoices for free.
Create a professional HTML email signature with your name, title, company, phone, and social links.
The blog is where we write about the engineering and design choices behind specific tools — why client-side processing won, how contrast math actually works, what trade-offs each generator makes. Recommended if you build software for a living.