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Small, fast utilities that run entirely in your browser. No uploads, no tracking — your data never leaves this page.
Encode text or files to Base64 entirely in your browser.
Decode Base64 back to text or download the original file.
Percent-encode or decode URLs and query strings, fully in-browser.
Format, validate, and minify JSON with clear error messages.
Convert between Unix timestamps and human-readable dates.
Test regular expressions against text and see every match live.
Build campaign tracking URLs with utm_* parameters, in your browser.
Convert text to camelCase, snake_case, kebab-case, Title Case, and more.
Count characters, words, sentences, lines, and reading time.
Compare two texts and highlight every line that changed.
Find and replace text, with regex and case-insensitive options.
Generate placeholder paragraphs, sentences, or words.
Sort lines alphabetically or by length, reverse, and dedupe.
Escape or unescape strings for JSON, JavaScript, HTML, and URLs.
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
Decode a JSON Web Token to inspect its header and payload.
Generate v4 (random) and v7 (time-ordered) UUIDs in bulk.
Generate strong random passwords using your browser’s crypto API.
Work out percentages, percentage change, and what-percent-of values.
Project investment growth with compounding and regular contributions.
Estimate monthly loan payments and total interest paid.
Calculate IPv4 network, broadcast, mask, and host range from CIDR.
Convert bases and run fixed-width bitwise operations, in your browser.
Convert images between JPEG, PNG, and WebP in your browser.
Shrink image file sizes by re-encoding, entirely in your browser.
Batch-resize images and add a watermark, all in your browser.
Pick a color and convert between HEX, RGB, and HSL.
Turn any text or URL into a downloadable QR code.
Generate square app and favicon icons in every size from one image.
Split an image into an even grid of tiles, in your browser.
Stamp a caption or label onto images, entirely in your browser.
Turn an image into a seamlessly tiling texture, in your browser.
Combine photos side by side, stacked, or in a grid, in your browser.
Pack images into a sprite sheet plus a JSON atlas, in your browser.
Auto-detect and extract frames from a sprite sheet, in your browser.
Render a font into a bitmap glyph atlas plus JSON, in your browser.
Combine images into a single PDF, one per page, in your browser.
Merge several PDFs into one, in order, entirely in your browser.
Extract pages or split a PDF into separate files, in your browser.
Record your screen and download the video, entirely in your browser.
Split an animated GIF into PNG frames, entirely in your browser.