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Website, pricing, platforms and company facts side by side.
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| Website | pixeltools.io | opalstack.com |
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| Platforms | — | |
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


PixelTools is a free, privacy-first toolkit for everyday image tasks. It bundles eight tools in one place: an image compressor (reduce file size up to 90%), a format converter (WebP, HEIC, PNG, JPG, AVIF, SVG, BMP, TIFF), a resizer with one-click social presets (Instagram, Pinterest, YouTube,...
No description of Opalstack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
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Overall verdict
Why this product is good
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PixelTools.io and Opalstack.
PixelTools.io's answer
PixelTools runs entirely in your browser — your images are processed on your device and never uploaded to a server. It bundles 8 image tools (convert, compress, resize, crop, background removal, AI upscaling, watermark, and screenshot beautifier) in one place, completely free, with no account and no file limits. Most alternatives upload your files, paywall features, or only do one thing — PixelTools is private, free, and all-in-one.
PixelTools.io's answer
Three reasons: privacy, price, and convenience. Unlike tools such as remove.bg, TinyPNG or iLoveIMG, PixelTools never uploads your files — everything runs locally, so it's faster and fully private. It's 100% free with no credits, no watermarks, and no sign-up. And instead of juggling a different site for each task, you get convert, compress, resize, crop, background removal, AI upscaling and watermarking in a single place.
PixelTools.io's answer
Anyone who works with images regularly: designers, developers, marketers, content creators, e-commerce sellers and students. It's especially popular with privacy-conscious users who'd rather not upload personal photos to a server, and with people who want quick, free tools without installing software or creating an account.
PixelTools.io's answer
PixelTools started from frustration with existing image tools — they upload your files, hide features behind paywalls, add watermarks to exports, or force an account for simple tasks. The goal was a single, fast, privacy-first toolkit that does everything in the browser, for free. Thanks to modern browser APIs and WebAssembly, all processing happens on-device, so your images never leave your computer.
PixelTools.io's answer
PixelTools is built with Next.js (App Router) and React with TypeScript. All image processing runs client-side via the browser's Canvas API and WebAssembly (e.g. for HEIC decoding), with on-device machine-learning models powering the AI background removal and upscaling. There is no server-side image processing.
Share your experience with using PixelTools.io and Opalstack. For example, how are they different and which one is better?
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