Developer Workflows

Developer tools for logs, diffs, JSON, regex, and local data inspection

Use browser-based utilities that still feel capable enough for technical triage, structured data cleanup, and heavy-file inspection.

Inspect LogsFormat JSON
Inspect 1GB+ logsFormat & validate JSONCompare text or imagesOpen SQLite databases
Log Viewer Pro

Log Viewer Pro

New

Browser-based viewer for massive log files (1GB+). Instant Regex search & privacy-first.

JSON Formatter

JSON Formatter

Format, validate, and beautify JSON data with syntax highlighting.

Diff Anything

Diff Anything

New

Compare text, code, and images securely. 100% local, no server uploads.

Regex Tester

Regex Tester

New

Test and debug regular expressions with real-time matching. 100% local.

SQLite Viewer

SQLite Viewer

Open and explore SQLite databases directly in your browser.

JWT Decoder

JWT Decoder

Decode and inspect JSON Web Tokens securely in your browser.

FAQ

Questions people ask before they pick a tool

01

Are these developer tools still local-first?

Yes. The intended workflows keep logs, tokens, and databases on the device.

02

Which tool is best for a large unknown file?

Start with Log Viewer for text-like operational artifacts and SQLite Viewer for database files.

Developer tools for logs, diffs, JSON, regex, and local data inspection | UltraTools