Free Online Development Tools

Ship faster with client-side formatters, converters, and debug utilities for JSON, markup, Git workflows, and everyday coding tasks.

Your data stays in your browser

Sensitive inputs (tokens, passwords, keys, and configs) are processed locally in your browser and is never sent to a server.

All tools · Development

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JSON Formatter

Prettify, minify, sort keys, and format API JSON responses.

Prettify and minify YAML, TOML, XML, HTML, CSS, and GraphQL.

Convert between CSV, JSON, Markdown tables, and reshape nested JSON structures.

Side-by-side diff for text, JSON, CSV, YAML, XML, and dotenv files.

Sort, number, trim, dedupe, and remove empty lines from multiline text.

Convert text case and generate URL-friendly slugs.

Wrap, reverse, ROT13, indent, strip comments, acronyms, and Unicode cleanup.

Escape and unescape JSON strings and Unicode sequences for safe embedding.

Pull URLs and email addresses out of unstructured text.

Word counts, palindrome checks, and Levenshtein edit distance.

1–10 of 18

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