Debug data
Format JSON, inspect JWTs, verify Base64, and test regex patterns before guessing at API issues.
Web Development Tools
Build, debug, validate, and ship faster with focused browser tools for API data, frontend details, launch files, and post-release updates.
Developer workflow
GoTools
Debug data
01Format JSON, inspect JWTs, verify Base64, and test regex patterns before guessing at API issues.
Prepare assets
02Parse URLs, convert colors, generate UUIDs, and build cron schedules while implementation details are still fresh.
Validate launch
03Compare copy changes and check robots.txt, sitemaps, and llms.txt before release issues become search problems.
Ship updates
04Extract sitemap URLs and notify compatible engines with IndexNow after important page changes.
Prepare assets
Parse URLs, convert colors, generate UUIDs, and build cron schedules while implementation details are still fresh.
Validate launch
Compare copy changes and check robots.txt, sitemaps, and llms.txt before release issues become search problems.
Ship updates
Extract sitemap URLs and notify compatible engines with IndexNow after important page changes.
Related Web Development Tools
Organized around the way web work actually moves: diagnose, prepare, validate, and ship.
JSON Formatter
Clean, format, and validate your JSON data instantly.
JWT Debugger
Decode, verify, and generate JSON Web Tokens locally.
Base64 Encoder
Encode and decode strings to and from Base64 format.
Regex Builder
Generate and test regular expressions with common templates.
URL Parser
Parse and edit URL parameters easily.
Color Toolbox
Convert colors and check contrast.
Text Diff Checker
Compare two texts and highlight differences.
UUID / ULID Generator
Generate unique identifiers in bulk.
Cron Expression Generator
Visually create cron schedules.
Sitemap Checker
Score sitemap availability, structure, and declarations.
Robots.txt Checker
Score crawler rules and sitemap declarations.
IndexNow Auto Submitter
Bulk submit new, updated, or deleted URLs to IndexNow and Bing.
A Lightweight Release Checklist
- Format API responses first, then inspect fields, status codes, and timestamps.
- Check URL parameters, color contrast, copy diffs, and cron schedules before release.
- After publishing a public site, verify robots.txt, sitemap.xml, and llms.txt availability.
- After bulk publishing or migrations, extract sitemap URLs and submit key changes.
Choose Tools by Job
API and auth debugging
Frontend implementation helpers
Deployment and discovery checks
Less context switching
Keep common utilities in the browser instead of scattering quick checks across tabs.
Local first
JSON, JWT, Base64, and text-diff work stays in the browser whenever possible.
Pre-launch review
Use checkers to confirm public files, URL inventories, and copy changes before release.
Post-release updates
Pair sitemap workflows with IndexNow after important page changes.