<tools />

> All Tools

50+ free utilities for developers and QA engineers. No signup required.

⌘K

Formatters

9 tools
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JSON Formatter

Format, validate, and beautify JSON
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XML Formatter

Pretty print XML documents
---

YAML Formatter

Format YAML with validation
SQL

SQL Formatter

Beautify SQL queries
< >

HTML Formatter

Prettify HTML markup
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CSS Formatter

Format CSS/SCSS/LESS
JS

JavaScript Formatter

Format JS/TS code
📋

Log Parser

Parse and analyze log files
📨

Email HTML Renderer

Preview HTML emails with compatibility checks

Generators

14 tools
#!

UUID Generator

Generate UUID v1, v4, v5, NIL
🔐

Password Generator

Secure password with options
Aa

Lorem Ipsum Generator

Placeholder text generator
👤

Fake Data Generator

Names, emails, addresses
#

Hash Generator

MD5, SHA-1, SHA-256, SHA-512
▣

QR Code Generator

Generate QR codes from text
🎨

Color Palette Generator

Random color schemes
/

Slug Generator

URL-friendly slugs
🌈

Gradient Generator

CSS gradient creator
◰

Box Shadow Generator

CSS box-shadow builder
🏷️

Meta Tag Generator

SEO meta tags
⚙️

.htaccess Generator

Apache configuration
🖼️

Placeholder Image

Custom placeholder images
🧾

Invoice PDF Generator

Create invoices as PDF

Converters

15 tools
↔

JSON ↔ CSV

Bidirectional conversion
↔

JSON ↔ XML

Bidirectional conversion
↔

JSON ↔ YAML

Bidirectional conversion
64

Base64 Encoder

Encode/decode Base64
%

URL Encoder

Encode/decode URLs
&

HTML Entity Encoder

Encode HTML entities
◷

Timestamp Converter

Unix ↔ human readable
01

Number Base Converter

Binary, hex, octal, decimal
🎨

Color Converter

HEX, RGB, HSL conversion
📏

Unit Converter

Bytes, time, length
⬛

Aspect Ratio Calculator

Calculate and resize ratios
Aa

Text Case Converter

camelCase, snake_case, etc.
💾

Byte Size Converter

KB, MB, GB conversions
Aa

Character Counter

Count chars, words, sentences
🗃️

JSON/CSV to SQL

Convert JSON or CSV data to SQL INSERT statements

Validators

9 tools
.*

Regex Tester

Test regex with highlights
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JSON Schema Validator

Validate against schema
* *

Cron Expression Validator

Parse & preview cron
@

Email Validator

Validate email format
💳

Credit Card Validator

Luhn algorithm check
📞

Phone Number Validator

International formats
🔗

URL Validator

Validate URL format
IP

IP Address Validator

IPv4/IPv6 validation
🔧

Regex Builder

Visual regex builder with match highlighting and pattern library

Diff & Compare

5 tools
≠

Text Diff

Line-by-line comparison
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JSON Diff

Structural JSON comparison
</>

XML Diff

Compare XML documents
🖼️

Image Diff

Visual image comparison
⋈

3-Way Merge

Three-way diff and merge with conflict resolution

Encoders

5 tools
🔑

JWT Decoder

Decode & inspect JWT tokens
🔐

JWT Builder

Create JWT tokens
📝

Markdown Preview

Live Markdown renderer
↓

HTML to Markdown

Convert HTML to MD
01

Text Encoder

Binary, hex, morse code

Network

8 tools
📡

HTTP Header Checker

Inspect response headers
🔍

DNS Lookup

Domain DNS records
🔒

CORS Tester

Test CORS policies
🔐

SSL Certificate Checker

Check SSL/TLS certificates
🎯

Webhook Tester

Receive & inspect webhooks
🔎

WHOIS Lookup

Domain registration info
🛡️

CSP Builder

CSP header generator
🔒

SSL/TLS Config Generator

SSL/TLS config generator

Reference

1 tools
🌐

HTTP Status Codes

Status code reference

Minifiers

3 tools
JS

JavaScript Minifier

Compress JavaScript code
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CSS Minifier

Minify CSS stylesheets
< >

HTML Minifier

Compress HTML documents

SEO Tools

6 tools
🤖

Robots.txt Generator

Control crawler access
🗺️

Sitemap Generator

Create XML sitemaps
📋

Schema Markup Generator

JSON-LD structured data
👁️

Open Graph Preview

Social media link preview
🔗

Canonical URL Builder

Prevent duplicate content
📊

Structured Data Validator

Validate JSON-LD and preview rich snippets

Legal

5 tools
🔒

Privacy Policy Generator

GDPR & CCPA compliant policies
📜

Terms of Service Generator

Website terms & conditions
🍪

Cookie Policy Generator

Cookie consent policies
⚠️

Disclaimer Generator

Liability disclaimers
©️

DMCA Policy Generator

Copyright takedown policies

Image Tools

4 tools
🎨

Favicon Generator

Create website favicons
📐

SVG Optimizer

Optimize SVG files
📷

Image Compressor

Compress images online
🔤

Base64 Image Converter

Convert images to Base64

Accessibility

4 tools
🎨

WCAG Contrast Checker

Check color contrast ratios
👁️

Color Blindness Simulator

Test color accessibility
📱

Responsive Preview

Test responsive designs
🎭

Accessible Color Palette

Generate a11y palettes

Utilities

5 tools
🔍

JSON Path Query

Query JSON with JSONPath
📅

Cron Calendar

Visualize cron schedules
#️⃣

File Hash Checker

Calculate file checksums
🔍

Secret Scanner

Scan code for leaked API keys and secrets
🎭

Data Masker

Anonymize PII in JSON and CSV files