Developer Debug Tools
Paste, format, decode, validate.
Fast browser-based developer tools for everyday debugging, API payloads, logs, and data conversion.
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OpenJSON Formatter
Pretty-print raw JSON, minify payloads, and inspect syntax errors with clear feedback.
API & Auth
OpenJWT Decoder
Decode JWT headers and payloads, inspect claims, and check expiry fields at a glance.
Formatters
OpenSQL Formatter
Beautify SQL queries for easier reading, code review, and debugging across environments.
Dev Debug Helpers
OpenLog Prettifier
Format JSON logs and semi-structured log lines into cleaner readable output for debugging.
Converters
OpenTimestamp Converter
Convert Unix seconds, Unix milliseconds, and ISO date strings with readable UTC and local output.
Categories
Formatters
Clean up JSON, XML, SQL, and HTML so structure is readable in seconds.
Encoders & Decoders
Convert Base64, URL, HTML, Java, and XML strings without leaving the browser.
API & Auth
Inspect tokens, headers, params, and HTTP responses with practical API debugging utilities.
Converters
Convert data structures, command snippets, timestamps, and naming styles for faster implementation.
Validators & Testers
Test regex, compare diffs, generate IDs, and validate structured values without setup.
Dev Debug Helpers
Handle logs, trace IDs, cron strings, escaped content, and debug payload helpers with less friction.