Formatho
The Privacy-First Developer Toolkit
Fast, secure, privacy-first collection of 100+ developer utilities and content productivity tools — built to solve everyday formatting, conversion, and debugging problems directly in your browser.
Crypto & Security
10 toolsToken Generator
Generate secure random tokens with customizable length and character sets.
Hash Text
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
Bcrypt
Generate and verify Bcrypt password hashes.
UUID Generator
Generate UUIDs (Universally Unique Identifiers). Supports v1, v4, and more.
ULID Generator
Generate ULIDs (Universally Unique Lexicographically Sortable Identifiers).
Encrypt/Decrypt
Encrypt and decrypt text using various algorithms.
BIP39 Passphrase
Generate BIP39 mnemonic phrases for cryptocurrency wallets.
HMAC Generator
Generate HMAC hash codes with various algorithms.
RSA Key Pair
Generate RSA public/private key pairs.
Password Strength
Analyze password strength and get improvement suggestions.
Converters
13 toolsDate-Time Converter
Convert dates and times between different formats and timezones.
Integer Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Roman Numerals
Convert between Roman numerals and Arabic numbers.
Base64 String
Encode and decode Base64 strings instantly.
Base64 File
Convert files to and from Base64 encoding.
Color Converter
Convert colors between HEX, RGB, HSL, and other formats.
Case Converter
Convert text between different cases (camelCase, snake_case, etc.).
Text to NATO
Convert text to NATO phonetic alphabet.
Text to Binary
Convert text to binary and vice versa.
JSON <> YAML
Convert JSON to YAML and YAML to JSON instantly.
JSON <> CSV
Convert JSON to CSV and CSV to JSON format instantly.
Temperature
Convert temperatures between Celsius, Fahrenheit, Kelvin, and Rankine.
XML <> JSON
Convert between XML and JSON formats.
Web & Network
12 toolsURL Encoder/Decoder
Encode and decode URL strings.
HTML Entities
Encode and decode HTML entities.
URL Parser
Parse and analyze URLs to extract components.
Device Information
View your browser and device information.
Basic Auth Generator
Generate HTTP Basic Authentication headers.
Meta Tag Generator
Generate HTML meta tags for SEO.
JWT Debugger
Decode and inspect JWT tokens instantly.
Keycode Info
Find keyboard keycodes for JavaScript events.
Slugify
Convert text to URL-friendly slugs.
User Agent Parser
Parse and analyze user agent strings.
HTTP Status Codes
Reference for HTTP status codes and their meanings.
JSON Diff
Compare two JSON objects and see differences.
Images & Media
4 toolsDevelopment
10 toolsGit Cheat Sheet
Quick reference for common Git commands.
Crontab Generator
Generate cron expressions with a visual builder.
JSON Viewer
Format and visualize JSON data.
JSON Minify
Minify JSON to reduce size.
SQL Formatter
Format and beautify SQL queries.
Chmod Calculator
Calculate Unix file permissions.
Docker to Compose
Convert docker run commands to docker-compose.
XML Formatter
Format and prettify XML documents.
YAML Viewer
Format and validate YAML documents.
Regex Tester
Test and debug regular expressions.
Network Tools
6 toolsIPv4 Subnet Calculator
Calculate IPv4 subnets, network ranges, and available hosts.
IPv4 Address Converter
Convert IPv4 addresses between formats.
IPv4 Range Expander
Expand IPv4 address ranges into individual IPs.
MAC Address Lookup
Look up MAC address vendor information.
MAC Address Generator
Generate random MAC addresses.
IPv6 ULA Generator
Generate IPv6 Unique Local Addresses.
Math & Calculators
3 toolsText Tools
7 toolsLorem Ipsum Generator
Generate placeholder text for designs.
Markdown Editor
Edit and preview Markdown files in real-time.
Diff Checker
Compare two texts and see differences.
Text Statistics
Count characters, words, sentences, and paragraphs.
Emoji Picker
Browse and copy emojis.
String Obfuscator
Obfuscate strings to hide sensitive data.
ASCII Art
Convert text to ASCII art.
Data Validation
4 toolsBlockchain
6 toolsEVM Unit Converter
Convert between Wei, Gwei, and Ether.
Keccak-256 Hasher
Generate Keccak-256 hashes for Ethereum.
Address Checksum
Validate Ethereum addresses (EIP-55).
Multi-Chain Keys
Generate keys for multiple blockchains from one mnemonic.
Address from Key
Derive addresses from private keys.
Solidity to Opcodes
Compile Solidity to EVM opcodes.
Artificial Intelligence
3 toolsWhy Developers Choose Formatho
Privacy-First Architecture
Every tool runs 100% client-side in your browser. No uploads, no database storage, and zero third-party analytics. Your sensitive data never leaves your device.
Lightning Fast Performance
Zero server latency means instant results. Tools execute directly in your browser's JavaScript engine, giving you millisecond-level response times for all operations.
Developer Focused
Built by developers, for developers. Clean interfaces, keyboard shortcuts, and powerful features that solve real-world problems in your daily workflow.
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