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Invoice Generator

PDF Merge PDF Splitter PDF Compress PDF Extract Pages PDF Rotate PDF Protect PDF Unlock

Text Diff / Compare Markdown Preview Case Converter Word Counter Lorem Ipsum

Image Compressor GIF Processor Image to PDF HEIC to JPG App Icon Generator App Screenshot Generator

Time Converter Unix Timestamp

57 tools available

Developer Tools

Essential tools for software development

33 tools available

Format, validate, and minify JSON data

Convert between JSON and YAML formats

Decode and inspect JSON Web Tokens

Base64 Converter

Encode and decode Base64 strings

Encode and decode URL components

Generate random UUIDs (v4) instantly

Password Generator

Create strong, secure passwords

Generate SHA-256, SHA-512 and other hashes

Test and debug regular expressions

Create and validate cron expressions

Color Converter

Convert between HEX, RGB, and HSL

Mock Data Generator

Generate realistic test data

QR Code Generator

Create QR codes for URLs, WiFi, contacts

Format, beautify, and minify SQL queries

Convert between CSV and JSON formats

Number Base Converter

Convert between binary, hex, octal, and decimal

Encode and decode HTML entities

Convert between KB, MB, GB, TB and more

Compare two JSON objects and see differences

Escape/unescape strings for JSON, HTML, URL, SQL

Aspect Ratio Calculator

Calculate image and video aspect ratios

Chmod Calculator

Calculate Unix file permissions (755, rwx)

Convert text to URL-friendly slugs

Placeholder Image

Generate placeholder images for mockups

Query DNS records (A, MX, TXT, NS, etc.)

Meta Tags Analyzer

Analyze Open Graph & Twitter Cards from URLs

Get location and network info for any IP

HTTP Headers Inspector

Inspect headers and security of any URL

JSON Schema Generator

Generate JSON Schema from example data

Create, sign, and verify JSON Web Tokens

Base64 Image Converter

Convert images to/from Base64 data URIs

Convert cURL to JS, Python, PHP, Go, Rust

Collection of tested regex patterns

Frequently Asked Questions

What developer tools are available?

WKIT offers 30+ developer tools including JSON formatter, JWT decoder/generator, Base64 encoder, regex tester, cURL converter, UUID generator, hash generator, and more.

Do these tools work offline?

Yes, most tools run entirely in your browser and work offline after initial page load.

Is my code/data private?

Yes, all processing happens client-side. Your data never leaves your browser for tools like JSON formatter, JWT decoder, and Base64 encoder.

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