About Spoold
Free developer toolbox with intelligent content detection. Paste JSON, HTML, JWT, curl, or any text and instantly get the right tool. No sign-up required.
Whether you're formatting JSON, previewing HTML, decoding JWTs, converting curl commands, or working with timestamps, Spoold provides the tools you need without the hassle of sign-ups, ads, or data collection.
Why Choose Spoold?
🔒 Privacy First
All processing happens in your browser. We don't store, transmit, or analyze your data. Your content stays on your device.
⚡ 100% Client-Side
Everything runs in your browser using JavaScript. No server processing means faster performance and complete privacy.
🚀 No Sign-Up Required
Start using our tools immediately. No accounts, no emails, no barriers. Just paste and go.
✨ Intelligent Detection
Our Magic Box automatically detects what you paste (JSON, HTML, JWT, curl, etc.) and suggests the right tool instantly.
💾 Save & Share
Save your work locally or share via secure links. History auto-saves for 90 days, and saved items never expire.
⌨️ Keyboard Shortcuts
Navigate quickly with keyboard shortcuts. Press ⌘K to search, or use shortcuts like jj for JSON tools.
Our Tools
Spoold offers 24+ developer tools organized by category:
📊 Data Tools
Format, validate, and compare JSON. Convert between JSON and YAML. Escape and unescape JSON strings. Preview and convert CSV files to JSON and other formats.
🌐 Web Tools
Preview HTML with live rendering. Encode and decode HTML entities. Parse and inspect URLs. Preview Markdown with GitHub Flavored Markdown support.
🔐 Security Tools
Decode and inspect JWT tokens. View header, payload, and expiry information. Edit and generate new tokens.
🔢 Encoding Tools
Encode and decode Base64, Hex, Unicode, and Binary. Compress and decompress with Gzip. Convert Base64/Hex to PDF.
📝 Text Tools
Test regular expressions with live matching. Preview Markdown with syntax highlighting. Edit code in 40+ programming languages.
🌐 HTTP Tools
Convert curl commands to code snippets in multiple languages (JavaScript fetch, axios, Python requests, etc.).
⏰ Time Tools
Convert Unix timestamps to human-readable dates and vice versa. Multiple timezone support, ISO 8601, and RFC formats.
How It Works
1. Paste Anything: Use our Magic Box on the homepage to paste JSON, HTML, JWT tokens, curl commands, CSV data, timestamps, or any text.
2. Auto-Detection: Our intelligent detection system analyzes your content and suggests the most appropriate tool automatically.
3. Use the Tool: The suggested tool opens with your content pre-loaded. Format, validate, convert, or analyze as needed.
4. Save & Share: Save your work locally for quick access, or generate a shareable link to collaborate with others. All sharing is secure and encrypted.
Privacy & Security
Your privacy is our top priority. All processing happens entirely in your browser using JavaScript. We never send your data to our servers, and we don't use analytics that track your content.
When you share content via links, the data is encrypted client-side before being stored. Only people with the link can access it, and you can set passwords for additional security.
We don't require sign-ups, so we don't collect emails or personal information. Your browsing history and saved items are stored locally in your browser using IndexedDB.
For more details, please read our Privacy Policy.
Open Source
Spoold is open source and available on GitHub. We welcome contributions, bug reports, and feature requests. If you find a bug or have an idea for a new tool, please open an issue or submit a pull request.
Visit our GitHub repository to view the source code, contribute, or report issues.
Get in Touch
Have questions, suggestions, or feedback? We'd love to hear from you!
Contact UsReady to Get Started?
Try Spoold now. No sign-up required, completely free, and privacy-first.