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Developer Tools Hub

60+ essential tools for coding, data processing, security, and design. Fast, secure & client-side.

60+ Tools · 100% Free · Runs in Browser
Data & Storage
JSON Formatter
Validate, format, and minify JSON data with syntax highlighting.
Data & Storage
UUID Generator
Bulk-generate version 4 UUIDs instantly.
Data & Storage
SQL Beautifier
Format and beautify messy SQL queries instantly.
Data & Storage
CSV ↔ JSON ↔ SQL
Convert between CSV, JSON, and SQL INSERT statements bidirectionally.
Data & Storage
Unix Timestamp Tool
Convert Unix timestamps to human-readable dates and vice versa.
Data & Storage
Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hexadecimal instantly.
Data & Storage
Encoding
Base64 Suite
Encode and decode text or images to Base64 format.
Encoding
Security & Cryptography
Hash Lab
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
Security & Cryptography
JWT Decoder
Decode and inspect JWT headers and payloads safely.
Security & Cryptography
JWT Generator
Create and sign JWTs with custom payload, algorithm, and secret key.
Security & Cryptography
Password Hash Tool
Hash passwords with bcrypt or argon2 — test and verify hashed values.
Security & Cryptography
HMAC Generator
Generate and verify HMAC signatures with SHA-256, SHA-512, and more.
Security & Cryptography
SSL Certificate Decoder
Decode and inspect SSL/TLS certificate details from PEM text.
Security & Cryptography
CORS Tester
Test your API CORS headers and validate cross-origin request policies.
Security & Cryptography
Design & Frontend
Box Shadow Pro
Create beautiful CSS box shadows with live preview.
Design & Frontend
Border Radius
Generate 8-point organic CSS border-radius shapes.
Design & Frontend
Color Studio
Convert HEX, RGB, HSL and browse color palettes.
Design & Frontend
Flexbox & Grid Generator
Visual Flexbox and CSS Grid builder with live preview and code export.
Design & Frontend
CSS Clamp Calculator
Calculate fluid clamp() values for responsive typography and spacing.
Design & Frontend
Image → Base64 / WebP
Convert images to Base64 data URIs or WebP format in your browser.
Design & Frontend
Favicon Generator
Generate multi-size favicon ICO and PNG files from any image or emoji.
Design & Frontend
Text Processing
Lorem Ipsum
Generate placeholder text for layouts and designs.
Text Processing
Diff Checker
Compare two pieces of text and see differences side-by-side.
Text Processing
Markdown Live
Write Markdown and see the rendered HTML in real-time.
Text Processing
Developer Essentials
Regex Hero
Test regular expressions with live matching, groups, and explanation.
Developer Essentials
Code Minifier
Compress and optimize JS and CSS code size.
Developer Essentials
Units Pro
Convert PX to REM, Bytes to GB, and more.
Developer Essentials
Cron Visualizer
Convert cron expressions to human-readable text with next run times.
Developer Essentials
UA Parser
Inspect and parse your browser User Agent string.
Developer Essentials
API & HTTP New
JSON → Type Generator
Generate TypeScript interfaces, PHP classes, or Go structs from any JSON object.
API & HTTP
cURL Builder
Build and import cURL commands with headers, auth, and body — export to code.
API & HTTP
HTTP Request Tester
Send GET, POST, PUT, DELETE requests with custom headers and body — Postman-lite.
API & HTTP
Webhook Tester
Inspect incoming webhook payloads — request bin in your browser.
API & HTTP
Env File Parser
Parse and validate .env files — check types, duplicates, and missing values.
API & HTTP
Git Diff Viewer
Visualize git diff output with syntax highlighting and patch file generation.
API & HTTP
Backend & DevOps New
Docker Compose Generator
Visually build docker-compose.yml files with services, volumes, and networks.
Backend & DevOps
Kubernetes YAML Validator
Validate and lint Kubernetes YAML manifests against schema definitions.
Backend & DevOps
Cron → Human + Next Runs
Convert cron expressions to plain English and preview next 10 scheduled runs.
Backend & DevOps
Log Analyzer
Parse Nginx, Apache, and JSON log files — extract errors and stats.
Backend & DevOps
IP Subnet Calculator
Calculate subnet masks, CIDR ranges, host counts, broadcast addresses.
Backend & DevOps
Testing & Debugging New
Mock Data Generator
Generate realistic fake data — users, products, addresses for API testing and DB seeding.
Testing & Debugging
API Response Formatter
Beautify and convert API responses between JSON, XML, and CSV formats.
Testing & Debugging
Stack Trace Beautifier
Parse and format minified JavaScript stack traces into readable output.
Testing & Debugging
Timezone Converter
Convert timestamps across multiple timezones simultaneously with DST awareness.
Testing & Debugging
Advanced & Unique New
SQL Query Explainer
Visualize and explain SQL query execution plans with join diagrams.
Advanced & Unique
API Schema Generator
Generate OpenAPI 3.0 / Swagger spec from JSON samples automatically.
Advanced & Unique
GraphQL Query Builder
Visually compose GraphQL queries, mutations, and variables with live preview.
Advanced & Unique