The fastest way to
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.
Everything you need, one place
From formatting JSON to compressing images, every tool is built for speed, privacy, and simplicity.
JSON Formatter→
Format, validate, beautify & minify JSON with tree view and conversion tools.
Base64 Encoder→
Encode & decode text and files to Base64. Image preview. URL-safe option.
Regex Tester→
Real-time regex matching with highlighting, explanation panel & pattern library.
Image Compressor→
Compress JPG, PNG, WebP with quality slider. Batch processing. Client-side.
Image Converter→
Convert between JPG, PNG, WebP, GIF, BMP, HEIC. Batch conversion supported.
Color Picker→
Visual picker, HEX/RGB/HSL conversion, palette from image, gradient CSS generator.
PDF Tools Suite→
Merge, split, compress, rotate PDFs. Image↔PDF conversion. All client-side.
Word Counter→
Live word, character, sentence count. Reading time. Keyword density. Readability score.
QR Code Generator→
Generate QR codes for URLs, WiFi, vCard. Custom colors, logo embed, PNG/SVG export.
CSS/JS Formatter→
Beautify & minify CSS, HTML, JavaScript. Syntax highlighting. Side-by-side view.
CSV Viewer & Editor→
Upload CSV, get an interactive table with sorting, filtering, cell editing, and export.
CSV to JSON→
Convert between CSV and JSON formats. Array of objects, nested, flat. Bidirectional.
Chart Maker→
Upload CSV, pick columns, create bar, line, pie, scatter charts. Export as PNG/SVG.
SQL Playground→
Load CSV into in-browser SQLite, write and run SQL queries. Export results as CSV.
CSV Dashboard→
Drop a CSV, get an instant dashboard. Auto-detects types, generates charts, stats & correlations.
Diff Checker→
Compare two texts side-by-side with highlighted additions, removals, and changes.
Built different. On purpose.
Most tool sites were built a decade ago. We rebuilt everything from scratch with modern tech and developer-first principles.
100% Client-Side
Every tool runs entirely in your browser. Your files and data never leave your device.
Privacy First
Zero server uploads. Zero tracking of your data. Process sensitive files with confidence.
Blazing Fast
Optimized for speed with static generation. Near-instant page loads on any connection.
Dark Mode Native
Designed for developers who live in dark mode. Easy on the eyes during late-night sessions.
Mobile Ready
Every tool works on mobile and tablet. Process files on the go from any device.
No Limits
No daily caps. No file size warnings. No forced sign-ups. Just tools that work, always.
How we stack up
| 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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