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Developer Toolkit

Developer Tools

The small utilities developers reach for every day — format and validate JSON, diff payloads, decode timestamps, inspect URL metadata. No signup, no install.

JSON Formatter & Validator

Format, validate, and beautify your JSON data with our online tool

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Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates easily

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JSON Diff Online

Compare differences between two JSON objects

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Text Difference Comparison Tool

A powerful online text difference comparison tool that helps you easily compare differences between two texts.

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Meta Tag Fetcher

A powerful Chrome extension for extracting, managing, and customizing meta tags from web pages in real-time.

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SQL to Table Converter

Convert SQL statements to visual tables, supporting CREATE TABLE and INSERT INTO statements

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URL Metadata Extractor

Extract metadata from any webpage including title, description, favicon and content

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JSON Validator & Formatter

Validate and format your JSON with real-time error checking

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Telegram Chat ID Finder

Easily find your Telegram chat ID by using your bot token

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AI Text Watermark Cleaner & Zero-Width Stripper

Detect and remove invisible AI watermarks, zero-width spaces, soft hyphens, Bidi overrides, and Unicode tags from text — 100% in your browser.

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Why every developer keeps these tools bookmarked

A surprising amount of developer time goes to tiny friction: a minified JSON response you need to read, an epoch timestamp in a log you need to translate, two API payloads that look identical but aren't, a URL whose Open Graph preview won't render. Each is a ten-second task with the right tool, and a five-minute distraction without one.

This page collects the utilities that come up most often across frontend, backend and DevOps work. Most run entirely in your browser — your JSON, text and SQL never leave your device. The URL-metadata and Telegram tools fetch server-side because they have to reach an external service, but nothing you look up is stored. Pick the one that matches the friction in front of you.

What you can do here

  • 1Detect and strip hidden AI text watermarks, zero-width spaces (ZWSP), and invisible Unicode characters.
  • 2Format, minify and validate JSON — catch syntax errors before they break your app.
  • 3Diff two JSON documents or two text blocks and see exactly what changed.
  • 4Convert Unix timestamps to readable dates across timezones.
  • 5Fetch the meta and Open Graph tags any URL exposes.
  • 6Paste SQL and render the results as a clean table.
  • 7Look up a Telegram chat ID for your bot integrations.

Frequently Asked Questions