Developer

Encode text or files to Base64 and decode Base64 strings — instantly, in your browser.

Calculate Unix file permissions instantly — switch between octal (755), symbolic (-rwxr-xr-x) and a visual checkbox grid. Includes special bits (setuid, setgid, sticky).

Convert colours between HEX, RGB, HSL and CMYK — with live preview.

Pick colours and convert between HEX, RGB, HSL and CMYK — with CSS snippets ready to copy.

Build and validate cron expressions

Build and validate cron expressions with a visual editor and next-5-runs preview.

Generate CSS gradient code visually

Convert a docker run command to docker-compose.yml — handles ports, volumes, env, restart, networks.

Strip dot tricks, plus-aliases, and capitalisation to find the underlying email.

Generate favicons in all sizes from any image or text — download ready-to-use ICO, PNG and SVG files.

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes instantly — for passwords, files and data integrity.

Look up every HTTP status code instantly — with plain-English descriptions, use cases and fix tips.

Find your public IP address and look up any IP's location, ISP and organisation instantly.

Convert between JSON, YAML, XML, and CSV. Auto-detect input format, side-by-side editors, all client-side.

Format, validate and minify JSON instantly — with clear error messages and line numbers.

Decode and inspect any JWT token instantly — header, payload, expiry and signature details, all in your browser.

Type Markdown on the left, see HTML preview on the right. GitHub-flavored: headings, lists, tables, code blocks, task lists. In-browser, no signup.

Convert between binary, octal, decimal and hexadecimal — instantly.

Generate strong, random passwords with custom length and character rules.

Parse and format international phone numbers with libphonenumber. Country dropdown defaults to ASEAN.

Search, copy, and test regular expressions instantly.

Test and debug regular expressions in real time — with match highlighting, groups and a built-in reference.

Encode and decode URLs and query strings instantly — with full RFC 3986 component support.

Decode browser, OS, device type, and bot signals from any User-Agent string.

Generate UUIDs v1/v4 and ULIDs instantly — bulk generation, multiple formats.