Is Morphix a drop-in replacement for CloudConvert?

For everyday conversions — MP4 to MP3, WebP to PNG, HEIC to JPG, PDF to JPG, DOCX to PDF — yes. Morphix runs the same codecs through WebAssembly inside your browser. CloudConvert still wins for exotic CAD, vector and font formats that need licensed desktop engines running on a server.

Does Morphix really never upload my file?

You can verify it yourself. Open your browser's developer tools, switch to the Network tab, and convert a file. You will see the page assets and the WebAssembly engine download, but no request that carries your file anywhere. CloudConvert, by design, must transfer the file to its servers before it can convert it.

For small and medium files Morphix is usually faster because there is no upload and no download of the result — the two slowest steps in a cloud conversion. For a very large video on a fast connection, a server with many CPU cores can encode quicker than a laptop, so CloudConvert can pull ahead once the file runs into the gigabytes.

What are the file-size limits?

Morphix is limited by the memory your browser can allocate, which in practice means comfortable handling of files up to about 2 GB on a modern desktop. CloudConvert's ceiling is set by your plan rather than your hardware, but every megabyte has to travel over your connection twice.

Yes, the free tier covers ten conversions a day with no account and no watermarks. Pro removes the daily cap and raises the size limit; because no server does the work, the price stays low.

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Guide · Privacy

Morphix vs CloudConvert: which converter should you use?

CloudConvert is the best-known name in online file conversion. Morphix does the same everyday jobs without your file ever leaving the browser tab. Here is an honest comparison of where each one wins.

The one difference that drives everything else

CloudConvert is a cloud service. When you drop in a video, the file is uploaded to a server, placed in a queue, converted there, and the result is downloaded back to you. That architecture is why it can offer hundreds of niche formats: it runs real desktop-class software on machines it controls.

Morphix is a local tool that happens to live on a web page. The conversion engines — FFmpeg, PDF.js, libarchive and friends — are compiled to WebAssembly and run inside your browser. Your file is read from disk into memory and written back out again, and no request ever carries it off your machine.

Everything else on this page follows from that single architectural choice: privacy, speed, offline use, pricing and the format list.

Side-by-side comparison

Feature comparison between Morphix and CloudConvert
Feature	Morphix	CloudConvert
Where the file is processed	Your browser, on your device	Their servers, in a data centre
File upload required	No	Yes, every conversion
Account needed	No	Yes beyond the free trial quota
Works offline after first load	Yes, for most tools	No
Speed on small and medium files	Instant — no transfer time	Upload + queue + download
Very large video encodes	Limited by your CPU	Server-grade hardware
Exotic formats (CAD, fonts, vectors)	Not covered	Extensive coverage
Retention of your data	Nothing leaves the tab	Stored temporarily, then deleted

Where CloudConvert is genuinely the better choice

It would be dishonest to claim a browser beats a data centre at everything. Pick CloudConvert when you need a format Morphix does not implement — DWG and other CAD drawings, font conversions, PostScript and InDesign artefacts, or spreadsheet formats with heavy formula support. Pick it too when you are re-encoding several hours of high-bitrate video and you would rather a server burn the CPU cycles than your laptop, or when you need an API that runs conversions on a schedule without a browser open.

Where Morphix wins

Anything sensitive is the obvious case: passports, contracts, payslips, medical scans, unreleased creative work. If the file never leaves the device, there is no upload to intercept, no temporary copy on someone else's disk, and no retention policy to trust. That reasoning also applies to work laptops where uploading company documents to a third party is simply against policy.

The second case is ordinary speed. Most conversions people actually run are small: a phone photo, a two-minute clip, a scanned PDF. On those, removing the upload and the download makes the whole job feel instant, because the transfer was always the slow part rather than the encoding.

The conversions people search for most

The highest-volume pairs on the web are also the ones Morphix handles entirely locally. Each of these is a dedicated tool with no sign-up and no upload:

How to verify the privacy claim in 30 seconds

Do not take anyone's word for it, including ours. Open your browser's developer tools, go to the Network tab, clear the log, then run a conversion. On Morphix you will see the page and the WebAssembly engine load, and then nothing while the file is processed — no request whose payload is the size of your file. Run the same test on any cloud converter and you will see the upload appear immediately. It is the fastest way to judge any converter you are considering.

Pricing, briefly

CloudConvert bills per conversion minute because every job consumes server time. Morphix does not pay for that compute, so the free tier covers ten conversions a day with no watermarks and no account, and Pro simply lifts the daily cap and the size limit. Compare the plans on the pricing page, or read our technical safety comparison of local and cloud converters.

The short answer

If your file is private, or the conversion is one of the common everyday pairs, use Morphix — it is faster and nothing is uploaded. If you need an unusual professional format, a scheduled API, or you are grinding through hours of video, CloudConvert earns its fee. Most people need the first far more often than the second.