The open-source, self-hosted alternative to Online-Convert
Online-Convert is a long-running hosted converter for many file categories. Vistalyth Tools is the self-hosted alternative for teams that want conversion and processing to happen on their own server.
Vistalyth Tools vs Online-Convert
| Vistalyth Tools | Online-Convert | |
|---|---|---|
| Deployment model | Self-hosted on your server | Hosted web service |
| File processing location | Your infrastructure | Browser uploads to Online-Convert/API2Convert cloud services |
| Cost control | Free AGPLv3; limits are your hardware | Free trial, credit packages, subscriptions, and enterprise options |
| 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 converters for media, documents, ebooks, and archives |
| 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 | Hosted API2Convert API and browser workflows |
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 Online-Convert.
Sources reviewed
One stack, all five file types
Online-Convert covers many conversion categories and has an API ecosystem through API2Convert. Vistalyth Tools is built for private deployments where conversion, compression, PDF work, audio/video processing, and local AI tools sit in one stack.
Frequently asked questions
- Why choose Vistalyth Tools over Online-Convert?
- Choose Vistalyth Tools when privacy, internal deployment, open-source code, or air-gapped file processing matters. Choose Online-Convert when you prefer a hosted converter with no server to maintain.
- Does Vistalyth Tools cover more than conversion?
- Yes. Vistalyth Tools includes conversion, compression, editing, OCR, transcription, PDF operations, metadata tools, archives, file tools, and pipelines.
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.