# Convert.Online

> A file conversion service that an agent can drive directly. Over 400 formats and
> 37,500 conversion pairs — images, video, audio, documents, spreadsheets, ebooks,
> fonts, CAD and 3D — plus OCR and unit conversion. Anonymous use needs no account,
> and a free tier needs no card.

There are three ways in, and they reach the same engine:

- **The web app** at https://convert.online — drag a file in, pick a target format.
- **A REST API** at https://api.convert.online — a job is a named chain of tasks
  (import, convert, export), so a one-off conversion and a multi-step pipeline are the
  same request shape.
- **An MCP server** at https://mcp.convert.online — five tools an assistant can call
  during a conversation. It builds the very same job envelope the REST API takes.

Files can be pulled from and pushed to Google Drive, Dropbox, OneDrive, S3, SFTP and
Google Cloud Storage, or fetched from a URL.

## For agents and developers

- [OpenAPI 3.1 specification](https://api.convert.online/openapi.json): the complete
  machine-readable contract — seven endpoints, request and response schemas, examples.
- [API documentation](https://convert.online/api-docs): authentication (a single API key
  in a header), the job/task model, webhooks with signature verification, live job
  events over SSE, sandbox mode.
- [MCP server](https://convert.online/mcp-server): how to connect over OAuth or an API
  key, and what the five tools do — `list_formats`, `list_options`, `create_upload`,
  `convert`, `get_job`.
- [API Job Builder](https://convert.online/api-job-builder): builds a working request
  visually and emits ready-to-run code in eight languages.

## Reference

- [Supported formats](https://convert.online/formats): every readable and writable
  format, with what each one is and what it converts to.
- [Unit converter](https://convert.online/unit-converter): length, mass, area, volume,
  temperature, data, and other dimensions.
- [Plans and pricing](https://convert.online/plans): the free tier and what the paid
  plans lift.

## Background

- [Blog](https://convert.online/blog)
- [Is my file safe when I use an online file converter?](https://convert.online/blog/is-my-file-safe-when-i-use-an-online-file-converter): what happens to an uploaded file and when it is deleted.
- [Renaming a file extension doesn't convert it](https://convert.online/blog/renaming-a-file-extension-doesnt-convert-it): why the extension is a label and the bytes decide.
- [Your scan is a photograph](https://convert.online/blog/scanned-pdf-searchable-ocr): what OCR adds to a scanned PDF, and why naming the language matters.
- [Convert it where it lives](https://convert.online/blog/cloud-import-drive-dropbox-onedrive): importing from Drive, Dropbox and OneDrive, what actually travels where, and the exact permissions requested.

## Notes

- Conversion pages follow the pattern `https://convert.online/<from>-to-<to>`, for
  example `https://convert.online/heic-to-jpg`. Format pages are at
  `https://convert.online/formats/<format>`.
- Contact: https://convert.online/contact