Image Editor All tools

#development

Parsers, formatters, encoders and validators for everyday coding. Inspect JSON, test regex, decode Base64 and more — all client-side.

11 tools·updated weekly

All development tools

Format, validate & explore JSON in a tree.

Pretty-print and inspect XML documents.

Test patterns with live match highlighting.

Base64 Encode / Decode

Encode or decode Base64 text and files.

Generate v4 UUIDs in bulk.

Password Generator

Generate strong random passwords in your browser with custom length, letters, digits and symbols, plus a strength rating.

QR Code Generator

Create QR codes from any text or URL right in your browser — pick size and error correction, then download as PNG.

Compute MD5, SHA-1, SHA-256 and SHA-512 hashes of any text instantly in your browser — private, fast and free.

Decode JWT header and payload in your browser, check expiry and claims — tokens never leave your device.

URL Encoder / Decoder

Encode or decode URLs and query string components online — percent-encoding made easy, entirely in your browser.

Markdown Preview

Write Markdown and see a live HTML preview side by side — headings, lists, links and code, rendered in your browser.