Fast, Free & Private Online Utilities
86+ high-speed, privacy-first workstations for documents, code, calculations, and media. 100% executed in your browser via modern Web APIs.
Explore Categories
Find the right workstation for your workflow — from daily office document processing to developer log formatters.
PDF Tools
Compress, merge, split, and edit PDF files effortlessly.
Encode / Decode Tools
Securely encode and decode data in various formats.
Text & Code Utilities
Format, clean, and manipulate text and code snippets.
Security & Hashing
Generate hashes and check security parameters.
Design & Conversion
Color, image, and visual conversion tools for creators and designers.
Network
IP calculation, CIDR subnetting, DNS, and network infrastructure utilities.
API & HTTP Tools
Translate cURL commands, inspect HAR archives, convert schemas, and generate client code.
General Utilities
Everyday tools for general tasks and calculations.
Math & Finance
Calculators for mathematical and financial needs.
Most Popular Tools
The most frequently accessed utilities for document manipulation, data formatting, financial calculations, and code inspection.
Base64 Encoder/Decoder
Encode text to Base64 format or decode it back to plain text.
JSON Formatter
Prettify, minify and validate your JSON data.
AWS CloudWatch Log Formatter
Format, colorize, and parse raw AWS CloudWatch logs, Lambda execution streams, and embedded JSON payloads.
SHA-256 Hash Generator
Generate secure SHA-256 hashes from any input text.
Password Generator
Generate strong, secure, and random passwords instantly.
JWT Decoder
Decode JSON Web Tokens (JWT) to see their header and payload.
LinkedIn Post Formatter
Format your LinkedIn posts with Bold, Italic, and more in real-time.
Average Share Price Calculator
Calculate weighted average share price, total investment cost, and target averaging requirements across multiple stock purchases.
PDF to Image
Convert PDF pages into high-quality JPEG or PNG images.
Markdown to LinkedIn
Convert standard Markdown to LinkedIn compatible text.
Docker Compose Generator
Visual multi-service docker-compose.yml builder with full-stack blueprints, port mappings, volumes, and environment variables.
Color Palette Generator
Harmonic color palette engine with Complementary, Triadic, Monochromatic harmonies, WCAG contrast scoring, and code export.
CIDR Calculator
Calculate IPv4/IPv6 subnets, network masks, usable host ranges, CIDR blocks, and visual bit allocation.
SQL Formatter
Format, beautify, and minify SQL queries across Standard SQL, PostgreSQL, MySQL, SQLite, and T-SQL dialects.
Typing Speed Test
How fast can you type? Test your WPM and accuracy with common English words, developer code syntax, and tech quotes.
JSON Diff / Compare
Deep semantic comparison of JSON objects and arrays with side-by-side split view and unified delta tree.
cURL to Code Converter
Translate terminal cURL commands into JavaScript (Fetch, Axios, Node-fetch), Python (requests, httpx, urllib), Go, PHP, Swift, Kotlin, Java, C#, HTTPie, and PowerShell.
JSON to TypeScript Converter
Instantly generate strongly-typed TypeScript interfaces and type aliases from JSON API responses and payloads.
HAR to cURL & API Extractor
Inspect browser HAR (HTTP Archive) network export files, search API calls, and export any request as a cURL command or code snippet.
Postman Collection to Code
Parse Postman Collection v2/v2.1 files, resolve collection variables, and generate language-specific API client code for all routes.
Engineered for Pure Velocity & Zero-Trust Privacy
Why developers, creators, and professionals choose local browser-first workstations over traditional ad-supported converter websites.
100% In-Browser Execution Engine
Unlike traditional utilities that upload your files to remote cloud queues, DevtUtils leverages modern Web Workers, WebCrypto, and WebAssembly to process documents, code, and calculations directly in your device RAM.
Zero-Telemetry Privacy
Your confidential PDF contracts, financial calculations, API keys, and sensitive tokens never touch any external database or analytics pipeline.
Ready to streamline your daily workflow?
Access all 86+ free, privacy-first workstations for PDFs, code formatters, calculations, and media conversion — no accounts or installs required.