Formatters
JSON & Data JSON Formatter JSON Path JSON Schema Generator JSON Schema Validator YAML Formatter
Web HTML Formatter CSS Formatter JS Formatter HTML Minifier CSS Minifier
Database & Markup SQL Formatter XML Formatter GraphQL Formatter TypeScript Formatter TOML Formatter INI Formatter Bash/Shell Formatter
View All Formatters →
Encoders
Encoding Base64 Encoder/Decoder URL Encoder/Decoder HTML Entity Encoder Hex Encoder/Decoder ASCII Encoder/Decoder
Decoding JWT Decoder Unicode Converter ROT13 / Caesar Cipher Morse Code Encoder/Decoder
View All Encoders →
Generators
Identifiers UUID Generator ID Generator Password Generator
Data & Content Hash Generator Bcrypt Hash Generator HMAC Generator Checksum Calculator Lorem Ipsum Generator Random Number Generator JSON Schema Generator JSON Schema to TypeScript
Visual Color Generator QR Code Generator CSS Gradient Generator CSS Box Shadow Generator
Code Generation JSON to TypeScript JSON to Java JSON to C# JSON to Go JSON to Python
View All Generators →
Converters
Time & Numbers Timestamp Converter Date Calculator Number Base Converter
Format Converters HTML to JSX Converter CSS to Tailwind Converter Markdown Editor & Previewer JSON to XML XML to JSON JSON to CSV CSV to JSON JSON to YAML YAML to JSON XML to CSV CSV to XML Image to Base64
Format & Units Color Converter Temperature Converter Unit Converter Currency Converter
View All Converters →
Validators
Code & Syntax JSON Validator JSON Schema Validator XML Validator YAML Validator
Web & Patterns HTML Validator CSS Validator Regex Tester Email Validator
View All Validators →
Strings
Text Manipulation Text Case Converter Text Replacer Slug Generator User Agent Parser
Compare & Analyze Text Diff Checker Diff Tool JSON Compare Text Compare String Length Calculator Word Counter Text Reverser Line Sorter Duplicate Line Remover
View All String Tools →
Network
IP & DNS IP Address Lookup IP Address Tools DNS Checker
Domains & URLs WHOIS Lookup HTTP Status Codes URL Parser SSL Certificate Checker
View All Network Tools →
DevOps
Container & Pipeline Docker Helpers Kubernetes Config CI/CD Templates
View All DevOps Tools →
Blog All Tools

All Developer Tools

Complete collection of free online utilities for developers. Browse 60+ tools organized by category, running securely in your browser.

search
keyboard_command_key K

format_align_left

Formatters

Beautify and format code for better readability

data_object

JSON Formatter

Format, validate, and prettify JSON data with syntax highlighting.
html

HTML Formatter

Format and beautify HTML code with proper indentation.
css

CSS Formatter

Format CSS code with consistent indentation and spacing.
javascript

JavaScript Formatter

Format JS code with proper indentation and syntax highlighting.
database

SQL Formatter

Format SQL queries with proper indentation and capitalization.
code

XML Formatter

Format XML documents with correct nesting and structure.
terminal

YAML Formatter

Format and validate YAML configuration files.
schema

GraphQL Formatter

Format and beautify GraphQL queries and schemas.
code

TypeScript Formatter

Format TypeScript code with syntax highlighting.
settings_ethernet

TOML Formatter

Format and validate TOML configuration files.
description

INI Formatter

Format and beautify INI configuration files.
terminal

Bash/Shell Formatter

Format and beautify shell scripts.
account_tree

JSON Path

Query and extract data from JSON using JSONPath expressions.
schema

JSON Schema Generator

Generate JSON Schema from your JSON data.
verified

JSON Schema Validator

Validate JSON data against a JSON Schema.
compress

HTML Minifier

Compress HTML code by removing whitespace and comments.
compress

CSS Minifier

Compress CSS code by removing whitespace and comments.
lock_open

Encoders & Decoders

Base64, URL, HTML and more encoding tools

key

Base64 Encoder/Decoder

Encode and decode Base64 strings with support for URL-safe encoding.
security

JWT Decoder

Decode JWT tokens and inspect payload, header, and expiration.
link

URL Encoder/Decoder

Encode and decode URLs and query parameters.
description

HTML Entity Encoder/Decoder

Encode and decode HTML entities and escape special characters.
tag

Hex Encoder/Decoder

Convert between hexadecimal and plain text representations.
text_fields

ASCII Encoder/Decoder

Convert between ASCII codes and text characters.
translate

Unicode Converter

Convert text to Unicode escape sequences and back.
swap_horiz

ROT13 / Caesar Cipher

Encode and decode text with ROT13 or Caesar cipher.
code

Morse Code Encoder/Decoder

Convert between text and Morse code.
auto_fix_high

Generators

UUID, passwords, hashes, and random data

fingerprint

UUID Generator

Generate UUID v1/v4 with bulk generation support.
password

Password Generator

Create strong, secure passwords with customizable rules.
enhanced_encryption

Hash Generator

Generate MD5, SHA1, SHA256, SHA512 hashes.
enhanced_encryption

Bcrypt Hash Generator

Generate and verify bcrypt password hashes.
verified

HMAC Generator

Generate HMAC signatures using SHA-256 or SHA-512.
verified

Checksum Calculator

Calculate file checksums and verify data integrity.
notes

Lorem Ipsum Generator

Generate placeholder text for layouts and designs.
casino

Random Number Generator

Generate random numbers within a custom range.
badge

ID Generator

Generate unique identifiers with custom formats.
palette

Color Generator

Generate random color palettes and schemes.
qr_code

QR Code Generator

Create QR codes from text or URLs instantly.
schema

JSON Schema Generator

Generate JSON Schema from your JSON data.
code

JSON Schema to TypeScript

Convert JSON Schema to TypeScript interface definitions.
code

JSON to TypeScript

Generate TypeScript interfaces from JSON data.
code

JSON to Java

Generate Java POJO classes from JSON data.
code

JSON to C#

Generate C# classes from JSON data.
code

JSON to Go

Generate Go structs from JSON data.
code

JSON to Python

Generate Python dataclasses from JSON data.
palette

CSS Gradient Generator

Create and customize CSS gradients with an interactive editor.
layers

CSS Box Shadow Generator

Create and customize CSS box shadows with visual controls.
sync

Converters

Transform data between different formats and units

schedule

Timestamp Converter

Convert Unix timestamps to human-readable dates and back.
calendar_month

Date Calculator

Calculate differences between dates and add/subtract days.
exposure

Number Base Converter

Convert between binary, octal, decimal, and hexadecimal.
transform

HTML to JSX Converter

Convert HTML markup to React JSX syntax.
palette

CSS to Tailwind Converter

Convert CSS styles to Tailwind CSS utility classes.
article

Markdown Editor & Previewer

Write and preview Markdown in real-time with live HTML preview.
colorize

Color Converter

Convert between HEX, RGB, HSL color formats.
thermostat

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin.
straighten

Unit Converter

Convert length, weight, volume, and other units.
attach_money

Currency Converter

Convert between world currencies with live rates.
transform

JSON to XML

Convert JSON data to well-formed XML documents.
transform

XML to JSON

Convert XML documents to clean JSON format.
table

JSON to CSV

Convert JSON data to CSV spreadsheet format.
table

CSV to JSON

Convert CSV spreadsheets to JSON format.
transform

JSON to YAML

Convert JSON data to clean YAML format.
transform

YAML to JSON

Convert YAML configuration to JSON format.
transform

XML to CSV

Extract XML data into CSV table format.
transform

CSV to XML

Convert CSV data into structured XML.
upload_file

Image to Base64

Convert images to Base64 encoded data URIs instantly.
check_circle

Validators

Check syntax and validate data formats

find_in_page

JSON Validator

Validate JSON syntax and identify structural errors.
code_blocks

XML Validator

Validate XML documents against DTD and schema.
list_alt

YAML Validator

Validate YAML configuration files for syntax errors.
web

HTML Validator

Check HTML for syntax errors and standards compliance.
style

CSS Validator

Validate CSS properties and values for correctness.
search

Regex Tester

Test and debug regular expressions with live preview.
mail

Email Validator

Validate email addresses format and deliverability.
verified

JSON Schema Validator

Validate JSON against a JSON Schema.
text_fields

String Tools

Case converters, diff checkers, and text manipulation

abc

Text Case Converter

Convert between camelCase, snake_case, PascalCase, and more.
difference

Text Diff Checker

Compare two texts and highlight differences side by side.
compare

Diff Tool

GitHub-style unified and split diff view for code comparison.
balance

Text Compare

Compare texts with similarity percentage and detailed diff.
straighten

String Length Calculator

Count characters, words, lines, and bytes in text.
find_replace

Text Replacer

Find and replace text with regex support and bulk operations.
link

Slug Generator

Generate URL-friendly slugs from any text.
text_fields

Word Counter

Count characters, words, and lines.
swap_horiz

Text Reverser

Reverse text, words, or lines.
compare_arrows

Line Sorter

Sort lines alphabetically or by length.
difference

Duplicate Line Remover

Remove duplicate lines and count occurrences.
compare

JSON Compare

Compare two JSON objects side-by-side and spot differences instantly.
devices

User Agent Parser

Parse and analyze User-Agent strings to identify browser and device.
public

Network Tools

IP lookup, DNS checker, and network utilities

location_on

IP Address Lookup

Look up IP address geolocation and ownership information.
swap_horiz

IP Address Tools

Convert IP addresses between dotted and binary formats.
dns

DNS Checker

Check DNS records for any domain name.
list_alt

HTTP Status Codes

Look up HTTP status codes with detailed descriptions.
travel_explore

WHOIS Lookup

Look up domain registration and ownership details.
link

URL Parser

Parse and inspect URL components and query parameters.
security

SSL Certificate Checker

Check SSL/TLS certificate details for any domain.
rocket_launch

DevOps Tools

Docker, Kubernetes, and CI/CD utilities

deployed_code

Docker Helpers

Generate Docker configs, commands, and compose files.
cloud

Kubernetes Config

Generate Kubernetes YAML configurations and manifests.
sync

CI/CD Templates

Ready-to-use pipeline templates for GitHub Actions and more.

Frequently Asked Questions

General
What is All Tools?expand_more
The All Tools page is the complete directory of every developer utility available on DevFormatters, organized by category so you can quickly find the right tool for your task.
How accurate are the tools?expand_more
The tools use well-tested, established algorithms and libraries. For example, the JSON formatter uses the browser's native JSON.parse/stringify, and hash generators use the Web Crypto API.
Are all the tools listed here free?expand_more
Yes, every tool listed on this page is completely free. There are no paid tiers, no registration requirements, no usage quotas, and no feature gating. All processing is client-side.
Can I use these tools offline?expand_more
Yes, after the initial page load, all tools function without an internet connection because processing runs locally in your browser.
Finding & Using Tools
How do I quickly find a specific tool?expand_more
Use the search bar at the top of the page — just type keywords like "json", "base64", or "uuid" to filter tools in real time. You can also press Ctrl+K (Cmd+K on Mac) to focus the search bar instantly. The search matches both tool names and descriptions for accurate results.
Are there any API rate limits or usage quotas?expand_more
No, all tools on DevFormatters run entirely in your browser with no server-side processing. There are no rate limits, usage quotas, or throttling of any kind. Every tool is truly free and unlimited with no registration required.
Can I bookmark or save my favorite tools?expand_more
Each tool has its own dedicated URL that you can bookmark in your browser. You can organize tool bookmarks into folders by category. All tools work offline after the initial page load, so bookmarked tools are always accessible.
How often are new tools added to the collection?expand_more
New tools are added regularly based on developer feedback and popular requests. Check the All Tools page for the latest additions or use the "Request a Tool" link at the bottom of the page to suggest a new utility.

Can't find what you're looking for?

We're constantly adding new tools. Suggest a utility or reach out if you need a specific format supported.

Request a Tool Contact Us

Last updated: July 14, 2026

For authoritative references on web development standards, see MDN Web Docs and the W3C Technical Reports.