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A curated toolkit of fast, free developer utilities. Text transformers, JSON formatters, encoders, converters and more — no login required.

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50+Developer Tools
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Popular Tools

Built for Developer Speed

Instant client-side processing — no data leaves your browser.

Featured

JSON Formatter

Prettify, validate, and minify JSON instantly. Supports syntax highlighting and error detection.

jsonformatter
12,400
Featured

Base64 Encoder & Decoder

Encode or decode Base64 strings and files. Supports URL-safe variant and binary inputs.

encoderbase64
9,800

URL Encoder / Decoder

Percent-encode and decode URL components. Handles query strings, fragments, and full URLs.

urlencoder
8,100

Regex Tester

Test and debug regular expressions with real-time matching, capture groups, and flags.

regexpattern
7,300

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files client-side.

hashcrypto
6,500

Color Converter

Convert between HEX, RGB, HSL, HSV, and CMYK color formats instantly.

colordesign
5,900

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Supports ms and seconds.

timeunix
4,800
Featured

JWT Decoder

Decode JSON Web Tokens instantly. View header, payload, verify expiration and signature purely client-side.

jwtdecoder
3,200
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From the Blog

Latest Guides

Practical tutorials and deep-dives to help you build faster.

bcryptargon2password security

Bcrypt vs Argon2: Selecting the Right Password Hashing Strategy for High-Security Systems

A deep technical comparison between bcrypt and Argon2, analyzing security models, performance trade-offs, and real-world implementation strategies for modern authentication systems.

Mar 20, 202611 min read
bcryptpassword hashingsecurity

Bcrypt Hash Generator: Production-Grade Password Security for Modern Systems

A deep technical guide on using bcrypt for secure password hashing, covering architecture, performance, security trade-offs, and real-world implementation strategies for scalable systems.

Mar 20, 202612 min read
uuiddistributed-systemsbackend

UUID Generator: Architecture, Performance, and Secure Identifier Design for Distributed Systems

A deep technical guide to UUID generation covering RFC standards, distributed system design, performance trade-offs, and production-grade implementation strategies for modern backend architectures.

Mar 20, 20268 min read
jsondeveloper toolsapi

JSON Formatter: Production-Grade Techniques for Parsing, Validating, and Optimizing JSON at Scale

A deep technical guide to JSON formatting, validation, performance optimization, and security practices for modern distributed systems. Designed for senior engineers building production-grade applications.

Mar 20, 20268 min read
base64encodingsecurity

Base64 Encoder/Decoder: Deep Technical Guide for Secure, High-Performance Data Transformation

A production-grade, deeply technical exploration of Base64 encoding and decoding for senior engineers. Covers architecture, performance trade-offs, security implications, and real-world implementation patterns.

Mar 20, 20268 min read
jwtauthenticationsecurity

JWT Decoder: Deep Technical Guide to Inspecting, Validating, and Securing JSON Web Tokens

A production-grade, security-first deep dive into decoding and validating JSON Web Tokens (JWTs). Covers architecture, cryptographic verification, performance optimization, and real-world pitfalls for senior engineers.

Mar 20, 20268 min read
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