Recast vs online file converters: convert without uploading your files
Online converters are convenient but they upload your file to a server you do not control, wrap the download in ads, and stop working when you are offline. Recast does the same conversions locally on your Mac. Here is how a native converter compares to the browser-based sites.
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| Need | Online converters | Recast |
|---|---|---|
| Where the file goes | Uploaded to a server | Stays on your Mac |
| Works offline | No | Yes |
| Speed on large files | Limited by your upload | Local, no upload wait |
| Formats | Many | 58 formats, 589 paths |
| Multi-step routing | Rare | Automatic best route |
| Batch conversion | Often limited or paywalled | Batch queues, live progress |
| Automation | Manual | Shortcuts 'Convert File' action |
| Cost | Ads or subscription | Donation download, fully activated |
Privacy is the real difference
Every browser-based converter works by uploading your file. For a meme that is fine; for a contract, an ID scan or unreleased media it is a needless exposure to an unknown server and retention policy. Recast keeps compatible conversions on-device, so the file never leaves your Mac.
The clever part: routing
When there is no direct converter from one format to another, most online tools simply fail. Recast models conversions as a capability graph across 58 formats and 589 paths, and finds the best route even if it takes several hops, the way a map app routes through connecting roads.
Frequently asked questions
Is there an offline alternative to online file converters?
Recast is a native Mac converter that keeps compatible conversions on-device, so your files are not uploaded. It handles images, video, audio, documents and data across 58 formats and works offline.
Can I convert files without uploading them to a website?
Yes. Recast converts locally on your Mac, which is faster for large files and keeps private files private. It is a fully activated donation download on this site.
What if there is no direct converter for my format?
Recast finds a multi-step route automatically by modelling conversions as a capability graph, so 'unsupported' often becomes 'supported via an intermediate step'.
Can Recast batch-convert a folder?
Yes. Recast runs batch queues with live, cancellable progress, and adds a Convert File action to the Shortcuts app for automation.