The open-source, self-hosted alternative to FreeConvert
FreeConvert is a broad hosted converter for browser-based file conversion and compression. Vistalyth Tools is the self-hosted alternative when you want those file operations to run inside your own deployment.
Vistalyth Tools vs FreeConvert
| Vistalyth Tools | FreeConvert | |
|---|---|---|
| Deployment model | Self-hosted on your server | Hosted web service |
| File processing location | Your infrastructure | Files are uploaded to FreeConvert; FreeConvert says converted files are automatically deleted after a few hours |
| Cost control | Free AGPLv3; limits are your hardware | Free web tier plus paid plans for larger or higher-priority workloads |
| Offline / air-gapped use | Supported when deployed inside your network | Designed for browser-based online use |
| Beyond file conversion | Image, video, audio, PDF, and files | Online conversion and compression across many formats |
| Source and auditability | Source available under AGPLv3 | Vendor-operated service; source availability is not the product model |
| Automation | REST API and pipelines in your deployment | Browser workflow or vendor-managed API, depending on product |
Last reviewed July 1, 2026. Comparison uses publicly available vendor pages and focuses on deployment model, file location, auditability, and workflow fit. Vendor features and plans change; check current docs before deciding. Vistalyth Tools is not affiliated with FreeConvert.
Sources reviewed
One stack, all five file types
FreeConvert is useful for quick online conversions across many categories. Vistalyth Tools covers conversion too, then adds local image tools, video/audio workflows, PDFs, archives, file tools, APIs, and pipelines.
Frequently asked questions
- Can Vistalyth Tools replace FreeConvert?
- For many image, video, audio, PDF, archive, and file conversions, yes. Vistalyth Tools is strongest when you want the converter deployed privately instead of using a hosted web service.
- Does Vistalyth Tools support large files?
- Vistalyth Tools's practical limits come from your server, storage, memory, and configured runtime limits. That makes it a better fit when you want to tune capacity yourself.
More comparisons
Run it on your own server
200+ tools across image, video, audio, PDF, and files. Open source, free forever, and your files never leave your network.
Deploying this across a team?
Audit trails, per-tool permissions, SSO, and air-gapped deployment for regulated environments. Talk to us about running Vistalyth Tools as shared infrastructure.