Both are free. Both compress images. But only one converts to WebP, renames files with AI, and never uploads your photos to a server.
Choose omnikitbolt if you…
Choose TinyPNG if you…
| Feature | omnikitbolt | TinyPNG |
|---|---|---|
| Price | Free (Pro $9/mo) | Free (Pro $25/mo) |
| Tools available | 27+ | 3 (compress, resize, WebP input) |
| Browser-based (no upload) | ||
| AI features (rename, alt text, sort) | ||
| Batch processing | 20 free / 500 Pro | 20 free / unlimited Pro |
| Format support | JPEG, PNG, WebP, HEIC, GIF, AVIF | JPEG, PNG, WebP |
| Max file size | 20 MB free / 50 MB Pro | 5 MB free / 75 MB Pro |
| JPG / PNG compression | ||
| WebP conversion | ||
| Quality control slider | ||
| EXIF data removal | ||
| Batch download as ZIP | Pro only | |
| No account required (compress) | ||
| API access | Pro | Paid |
| WordPress plugin |
We tested both tools with the same 5 MB JPEG photo (4000x3000px, landscape). Results:
| Metric | omnikitbolt | TinyPNG |
|---|---|---|
| Original file | 5.0 MB JPEG | 5.0 MB JPEG |
| Compressed output (JPEG) | 812 KB (84% smaller) | 856 KB (83% smaller) |
| WebP output | 624 KB (87% smaller) | N/A (not available) |
| Processing time | ~1.2s (in-browser) | ~3.5s (upload + server) |
| File uploaded to server? | No | Yes |
Test performed March 2026. Quality set to 80 on omnikitbolt. TinyPNG uses automatic quality. Results may vary depending on image content.
omnikitbolt is better for users who want WebP conversion, AI-powered renaming, privacy (no server uploads), quality control, and a cheaper Pro plan ($9/mo vs $25/mo). It supports 27+ tools and 6 image formats including HEIC and AVIF.
TinyPNG is better for WordPress users who need a plugin, teams that rely on TinyPNG's API for automated pipelines, and users who prefer a simpler single-purpose compressor.
TinyPNG uploads your images to their servers for compression. omnikitbolt compresses and converts everything locally in your browser using WebAssembly and the Canvas API. Your files are never sent anywhere- this matters if you work with client photos, confidential screenshots, or private images.
WebP is 25-34% smaller than JPEG at equivalent quality. It's supported by all modern browsers and improves Core Web Vitals. TinyPNG supports WebP input but doesn't convert JPG/PNG to WebP. omnikitbolt converts any image to WebP in one click, in-browser, for free.
omnikitbolt uses Google Gemini to analyze each image and generate an SEO-optimized filename and alt text. Upload IMG_4829.jpg, get back golden-retriever-puppy-playing-grass.webp- automatically. This feature is free with a login (10/day), or unlimited on Pro.
TinyPNG Pro starts at $25/month. omnikitbolt Pro is $9/month and includes unlimited AI rename (200/day), bulk processing up to 500 files, ZIP download, and no ads. For most users, the free plan is enough forever.
No signup required for compression. Free forever for the core tools.
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