Your everyday developer workbench

Small tools. Clearer code.

Format, inspect and transform everyday developer data. No accounts, no uploads, just a useful workbench.

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A tool for the task at hand.

16 free tools · no installation

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JSON Formatter

Validate, pretty-print and minify JSON with readable error feedback.

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XML Formatter

Check well-formed XML and indent its element structure.

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Base64 Encoder and Decoder

Encode Unicode text as Base64 or decode Base64 back into UTF-8 text.

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URL Encoder and Decoder

Encode a URL component or decode percent-escaped text.

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JWT Decoder

Inspect a JWT header and payload locally, without sending the token to a server.

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Hash Generator

Calculate SHA-256, SHA-512 or an MD5 checksum for text.

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CSV to JSON Converter

Convert CSV rows into JSON objects using the first row as field names.

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YAML to JSON Converter

Parse YAML and export an indented JSON document.

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Cron Expression Generator

Build a five-field cron expression and preview the next five run times in UTC.

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Regex Tester

Test a JavaScript regular expression and inspect its matches.

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Text Diff Checker

Compare two pieces of text and see added, removed and unchanged lines.

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HTML Editor

Edit HTML and see it in a sandboxed preview.

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Markdown Editor

Turn Markdown into a sanitized HTML preview and copy the generated HTML.

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CSS Minifier

Remove unnecessary CSS whitespace and comments while preserving parsed rules.

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JavaScript Minifier

Minify a JavaScript snippet with a real JavaScript parser.

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Password Generator

Generate a random password with browser cryptography and adjustable length.

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Start with the task.

Open a tool and get to work. There is no account to create and no trial to unlock.

Keep your work close.

Tool inputs are processed on your device. We do not upload your files or text to do the work.

Know what to expect.

Each tool explains its supported formats, limits and output before you begin.