10 essential tools that run entirely in your browser. No uploads, no sign-ups, no limits. Just paste, drop, or type and get results instantly.
From formatting JSON to compressing images, every tool is built for speed, privacy, and simplicity.
Format, validate, beautify & minify JSON with tree view and conversion tools.
Encode & decode text and files to Base64. Image preview. URL-safe option.
Real-time regex matching with highlighting, explanation panel & pattern library.
Compress JPG, PNG, WebP with quality slider. Batch processing. Client-side.
Convert between JPG, PNG, WebP, GIF, BMP, HEIC. Batch conversion supported.
Visual picker, HEX/RGB/HSL conversion, palette from image, gradient CSS generator.
Merge, split, compress, rotate PDFs. Image↔PDF conversion. All client-side.
Live word, character, sentence count. Reading time. Keyword density. Readability score.
Generate QR codes for URLs, WiFi, vCard. Custom colors, logo embed, PNG/SVG export.
Beautify & minify CSS, HTML, JavaScript. Syntax highlighting. Side-by-side view.
Most tool sites were built a decade ago. We rebuilt everything from scratch with modern tech and developer-first principles.
Every tool runs entirely in your browser. Your files and data never leave your device.
Zero server uploads. Zero tracking of your data. Process sensitive files with confidence.
Optimized for speed with static generation. Near-instant page loads on any connection.
Designed for developers who live in dark mode. Easy on the eyes during late-night sessions.
Every tool works on mobile and tablet. Process files on the go from any device.
No daily caps. No file size warnings. No forced sign-ups. Just tools that work, always.
| Feature | NebulaTool | Others |
|---|---|---|
| Client-side processing | ✓ | ✗ |
| No file uploads to server | ✓ | ✗ |
| Modern, fast UI | ✓ | ✗ |
| Dark mode | ✓ | ✗ |
| Mobile responsive | ✓ | Partial |
| No account required | ✓ | Partial |
| Free with no limits | ✓ | ✗ |
| No usage limits | ✓ | ✗ |
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