Free Online Developer Tools

• Fast and Privacy-First: All tools run entirely in your browser, ensuring your data never leaves your device. No sign-up, no login, and no usage limits.
• Comprehensive Utility Suite: Offers a wide range of tools including JSON formatters, encoders, decoders, generators, security tools, and more.
• Key Features:
• JSON Tools: Format, validate, encode/decode Base64, encode/decode URLs, and more.
• Security Tools: Decode JWTs, generate passwords, and test regular expressions.
• Generators: Create UUIDs, passwords, and other essential items.
• AI/LLM Tools: Includes LLM token counters and pricing calculators.
• DevOps Tools: Utilities for Docker Compose, Kubernetes, and Cron expressions.
• Offline Capabilities: Many tools are designed to work offline once the page has loaded.
• Constantly Growing: A regularly updated collection with new tools added frequently.