Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
Developer Clipboard Workspace
Paste anything — JWT, JSON, SQL, or Base64 — and get instant results.
- Home
- Web Dev
- Clipboard Workspace
Supported Formats
JWT Tokens
Decode header and payload. View algorithm, claims, and expiration.
JSON
Format and beautify JSON data. Validate syntax and structure.
SQL Queries
Format SQL with proper indentation, keyword casing, and clause alignment.
Base64
Decode Base64 encoded strings back to readable text instantly.
How to Use
- Paste your content — Click Paste from Clipboard to paste directly from your clipboard, or type/paste into the textarea manually.
- Auto-detection — The tool instantly detects JWT tokens, JSON, SQL queries, and Base64 encoded data based on content patterns.
- View results — JWT tokens are decoded (header + payload), JSON and SQL are formatted, and Base64 is decoded to readable text.
- Refine — Use the Format/Minify buttons for JSON and SQL to switch between views.
- Dive deeper — Click Open in Full Tool to access the dedicated tool with advanced features.
Frequently Asked Questions
What types of content does the clipboard workspace detect?
It automatically detects JWT tokens (decodes header and payload), JSON (format and beautify), SQL queries (format with proper indentation), and Base64 encoded data (decode to readable text). Each type is identified by content patterns and displayed with appropriate formatting options.
Is my data sent to a server when I paste content?
No. All processing happens entirely in your browser using JavaScript. Your pasted content, JWT tokens, SQL queries, and any other data never leave your device. This makes it safe to use with sensitive or private information.
How do I decode a JWT token using this tool?
Simply paste the JWT token into the input area. The tool automatically detects it as a JWT token (based on the xxxxx.yyyyy.zzzzz pattern), decodes the header and payload Base64 parts, and displays them as formatted JSON. You can then click "Open in Full Tool" for advanced JWT operations.
What is the "Open in Full Tool" link for?
The clipboard workspace provides quick formatting and basic analysis. The "Open in Full Tool" link takes you to the dedicated tool page for that content type (e.g., full JWT decoder, JSON formatter, SQL formatter) where you can access more advanced features, options, and detailed information.
Does this tool support Base64 decoding and encoding?
Yes, the clipboard workspace detects Base64 encoded strings and decodes them to readable text. If you need to encode text to Base64, use the full Base64 tool available through the "Open in Full Tool" link when Base64 content is detected.
Last updated: 17 Aug 2026
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