
Smallpdf
iLovePDF
Convertio
CloudConvert
PDF24
Stirling PDF
Adobe Acrobat DC
500+ free file tools (PDF, image, audio, video, data, 3D) that run entirely inside your browser via WebAssembly. No uploads, no account, works offline, available in 25+ languages.

Listen to your favourite mixes from YouTube etc in one place
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | gottrix.app | mixqueue.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from Germany · 2026 | — |
| Listed in | — |
In their own words, as submitted to SaaSHub.


Almost every "free" online file converter works the same way: you upload your file to a server, it gets processed there, and you download the result. gottrix works differently. Every single conversion, from compressing a PDF to trimming an MP3 to converting a HEIC photo, runs entirely inside your...
No description of MixQueue yet.
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Gottrix.app yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Gottrix.app and MixQueue.
Gottrix.app's answer
Astro and TypeScript for the site itself, Tailwind CSS for styling, and WebAssembly for the actual conversion engines (ffmpeg.wasm for audio/video, pdf.js and pdf-lib for PDF, libheif and Squoosh for images), all running inside sandboxed Web Workers with zero network access.
Gottrix.app's answer
Anyone handling files they'd rather not hand to a third-party server: freelancers and professionals working with contracts, invoices or client documents, students and privacy-conscious individuals doing everyday conversions, and international users thanks to 25+ language support. Also a good fit for regulated or confidential business contexts where uploading a file anywhere isn't an option.
Gottrix.app's answer
gottrix started from a simple frustration: nearly every "free" online file converter requires uploading your document to someone else's server, even for something as routine as compressing a PDF or converting a photo. gottrix was built to remove that requirement entirely. Everything runs in the browser via WebAssembly, so the file never leaves the device in the first place.
Gottrix.app's answer
Every conversion runs 100% client-side in WebAssembly - files never touch a server, provably so (you can verify it yourself in DevTools' Network panel, or just try it in airplane mode after the first visit). Most converters ask you to trust a privacy policy; gottrix lets you check. On top of that: 500+ tools across PDF, image, audio, video, data and 3D formats in one place, no account, no signup, available in 25+ languages.
Gottrix.app's answer
Competitors like Smallpdf, iLovePDF, Convertio and CloudConvert upload your file to their servers to process it - fine for a random image, risky for a contract, medical record, or anything confidential. gottrix never uploads anything, so there's nothing to leak, no server log of what you converted, and no need to trust a third party with sensitive documents. It's also free without the usual catches: no per-file limits, no watermarks, no forced account, and it keeps working offline once loaded.
Share your experience with using Gottrix.app and MixQueue. For example, how are they different and which one is better?
When comparing Gottrix.app and MixQueue, you can also consider the following products.




convert anything to anything - more than 200 different audio, video, document, ebook, archive, image, spreadsheet and presentation formats supported.
Compare CloudConvert to Gottrix.app or MixQueue:

PDF24 is a free to use PDF creator, converter, and virtual printer.
Compare PDF24 to Gottrix.app or MixQueue:

locally hosted web application that allows you to perform various operations on PDF files.
Compare Stirling PDF to Gottrix.app or MixQueue: