Developer Tools
Browse 59 tools for formatting, debugging, encoding, networking, and security work. Browser-based, no account required, and local-first for most tools so you can handle quick engineering tasks without opening five different tabs.
Popular tools
Start with the tools developers open most often across formatting, security, encoding, and networking work.
Date Converter
Convert between timestamps, ISO strings, and readable date formats instantly.
JWT Debugger
Decode JWT headers and payloads, inspect claims, and verify token structure quickly.
Cron Parser
Turn cron expressions into human-readable schedules so you can verify timing safely.
JSON Formatter & Validator
Format, beautify, and validate JSON payloads before they break an API or script.
Base64 Transcoder
Encode or decode text and files with Base64 in a clear browser-based utility.
Regex Tester
Test regular expressions against input text and inspect the matches quickly.
UUID v4 Generator
Generate UUID v4 identifiers locally for testing, records, and distributed systems.
Hash Generator
Generate hashes like SHA-256 and MD5 for testing, verification, and reference use.
Search
Find the tool you need without scanning the full directory.
Jump straight into the tool you need for quick JSON cleanup, JWT inspection, Base64 decoding, regex testing, cron checks, date conversion, hashing, and other everyday development tasks.
For most tools, you can paste your input, get the result, and move on without creating an account or sending common formatting and inspection work through a separate service.
How This Developer Tools Directory Helps
This page is built for speed and clarity. Its goal is to help you find the right browser-based developer tool quickly, so you can get back to building instead of searching. It's not a long tutorial hub or a collection of one-time utilities. Instead, it focuses on practical tools you actually need during day-to-day development.
This directory is most useful when you need a fast solution for things like formatting, debugging, encoding, validation, networking checks, or quick lookups without installing software, creating accounts, or jumping between multiple websites.
Open it, use the tool, and move on with your work.
Use one directory instead of five tabs
This page is built for the small tasks that show up constantly during development: inspect a JWT, format JSON, decode Base64, check a cron expression, or generate a quick value without breaking your flow.
Find the right utility fast
Search, category filters, and popular-tool shortcuts make it easier to get to the exact utility you need instead of browsing tool farms that mix everything together.
Handle common input locally
Most tools here run their core interaction in the browser after the page loads, which makes the directory useful for quick formatting, inspection, and conversion work during everyday engineering tasks.
Return to the tools you actually use
Quick access becomes more useful over time because the directory can surface tools you open repeatedly, which is especially helpful for debugging, encoding, and verification tasks you revisit often.
FAQs
Are these developer tools free to use?
Yes. All 59 tools on coders.sh are free to use and accessible without an account.How is my data handled?
Most tools on this page process your input in the browser during the session. We do not present the catalog as a server-side paste bin, and you should still use normal caution with secrets in any web tool.Can I use these tools offline?
Many of them continue to work after the page loads because the core interactions run in the browser, but exact offline behavior can vary by tool and browser capability.How does the quick access feature work?
Frequently opened tools are surfaced back to you through local usage history, so your personal quick-access set gets easier to reach over time. This is stored in your browser storage.What kinds of developer tools are included here?
The directory includes tools for JSON and data formatting, JWT and token inspection, encoding and decoding, regex testing, cron checks, hashing, networking utilities, and other quick engineering tasks.Do I need to install anything to use these tools?
No. The goal of this directory is to help you handle common developer tasks directly in the browser without installing a separate desktop utility for each one.Can I use these tools for quick debugging during development?
Yes. These tools are designed for quick support work during development, especially when you need to inspect data, convert formats, test patterns, or verify values without leaving your workflow.Which tools are most useful for everyday engineering work?
That usually depends on your workflow, but commonly used tools include JSON formatters, JWT debuggers, Base64 converters, regex testers, cron parsers, date converters, and hashing tools.