Formatlane
Browser-based developer utilities for formatting, validation, conversion, and debugging.
Formatlane is a browser-based toolkit for everyday developer cleanup, validation, conversion, and debugging work.
It brings JSON, YAML, SQL, XML, HTML, Markdown, CSV, plain text, JWT, regex, diff, and API-request workflows into one focused app instead of scattering them across single-purpose tabs.
Most quick formatting, validation, and conversion tasks run directly in the browser, which makes it useful for fast checks, repeatable cleanup, and inspecting payloads without unnecessary setup.
What it covers
- Format and validate structured data such as JSON, YAML, XML, CSV, SQL, and HTML.
- Test API requests, inspect responses, and save repeatable request setups.
- Decode JWTs, inspect regex matches, compare diffs, and preview Markdown output.
- Keep snippets and settings close to the browser, with optional synced storage when needed.
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