JSON, regex, hashes — every utility, never logged.

Work out a missing width or height for any aspect ratio, or reduce a pixel size to its simplest ratio.

Convert text or files to and from Base64.

Convert text to and from binary, hex, octal, or decimal character codes — both directions, in your browser.

Encode or decode text with a Caesar shift cipher. ROT13 preset and brute-force decoder included.

Convert text to UPPERCASE, lowercase, camelCase, snake_case, and 8 more styles.

Shrink or reformat HTML, CSS, and JavaScript in one place.

See how any image looks to people with red-green, blue-yellow, or total color blindness.

Check WCAG AA / AAA contrast between any two colors with live preview.

Convert between HEX, RGB, HSL, and CMYK.

Build and decode cron schedules, with a plain-English readout and the next run times.

Design CSS box-shadows visually and copy ready-to-paste code.

Draw a shape, drag the points, and copy the CSS clip-path.

Build linear, radial, and conic gradients visually and copy the CSS.

Convert between CSV and JSON formats instantly.

Compare two text blocks side-by-side with line-level highlighting.

Turn any text into 30+ copy-paste Unicode styles like bold, italic, script, bubble, and upside-down.

Generate all favicon sizes from a single image.

Run several find-and-replace rules over a block of text, applied in order, with regex support.

Design a frosted-glass card and copy the CSS.

Escape text into HTML entities, or turn entities back into readable text — both ways, named or numeric.

Turn HTML into clean Markdown or Markdown into HTML, with a live rendered preview.

Turn any photo into text-character art you can copy or download.

Turn any image into a Base64 data URI with ready-to-paste snippets, or decode one back to a downloadable image.

Paste messy JSON and get it beautifully formatted.

Paste JSON and get clean TypeScript interfaces you can drop straight into your code.

Query any JSON document with a JSONPath expression and see the matches live.

Create placeholder text for designs.

Write and preview Markdown with live rendering.

Design a smooth multi-color mesh gradient and export it as PNG, CSS, or SVG.

Build realistic fake test data as JSON, CSV, or SQL from fields you define.

Convert text to and from Morse code, and hear it played back as beeps.

Spell anything in the NATO phonetic alphabet, or read spelled-out code words back into plain text.

Convert whole numbers between binary, octal, decimal, hex, and any base from 2 to 36.

Convert between px, rem, em, pt, %, and viewport units with your own root and parent font-size.

Write and test regular expressions with live matching.

Beautify or minify SQL for any database dialect.

Work out the network, broadcast, usable host range, and address count for any IPv4 or IPv6 CIDR block.

Create smooth, organic blob shapes and export them as clean SVG or PNG.

Compress and clean up SVG markup — smaller files, identical output.

Build a seamless repeating background pattern and copy it as SVG or CSS.

Tidy messy text with toggleable fixes — trim lines, collapse spaces, dedupe, sort, strip HTML, and more.

Condense a long article, report, or transcript down to its key sentences.

Turn any text into speech using your browser's built-in voices.

Measure your typing speed and accuracy on a timed passage.

Length, weight, temperature, volume, and more.

Convert Unix epoch timestamps to human-readable dates and back, with a live current epoch, full timezone support, and millisecond precision.

Encode and decode URLs and edit query strings live. Two-mode tool — encode/decode any string, or paste a full URL and edit its parameters in a table.

Create unique IDs instantly.

Count words, characters, sentences, and estimate reading time.

Convert a .docx Word file into clean, GitHub-flavored Markdown, entirely in your browser.

Pretty-print, minify, and convert XML to and from JSON right in your browser.

Convert between YAML and JSON in both directions with live output and clear validation.