HRConvert2

Free plan APILinuxSelf-hostedWeb

What HRConvert2 is

HRConvert2 is a free, self-hosted file conversion server for Linux, web, and API use. It runs conversions on hardware you control and supports 488 formats spanning documents, ebooks, comics, spreadsheets, presentations, images, audio, video, streams, 3D models, CAD drawings, vector graphics, subtitles, and archives. Its tools include OCR for PDFs and images, OpenSCAD rendering, and capture or re-encoding of M3U8 live streams. Conversions stay local, with no accounts, sessions, cookies, database, tracking, analytics, or telemetry. Temporary files are removed after a configurable age, and users receive separate scratch space. Temporary share links expire with their files. Bubblewrap sandboxes, sanitized uploads, and stream-host checks protect processing; ClamAV or scanCore can add virus scanning. The service offers an API, web interfaces, 26 languages, seven color schemes, three interfaces, and right-to-left language support. Installation is documented from source or Docker, with Debian or Ubuntu, Apache, PHP, and bubblewrap required.

Who it suits

It suits people or organizations wanting broad file conversion on self-managed Linux hardware. It also fits users needing local processing, API access, OCR, or temporary sharing.

What it does well

Supports 488 formats across many file categories
Local processing without accounts or telemetry
OCR and OpenSCAD rendering included
API and web interfaces available
Temporary links expire with files

What to know first

No automatic dependency or security patching
PHP upload limits require administrator configuration
Docker conversion sandbox requires SYS_ADMIN
Requires Linux server components and bubblewrap

Plans

Plan	Billed and limits	Price
Free / open source	Free to use · Free to modify · Free to self-host	Free

As github.com lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

HRConvert2 combines extensive format coverage with self-hosted, local processing and several specialized conversion tools. Administrators must handle installation, upload limits, and dependency maintenance themselves.

Facts from HRConvert2's own pages

API access: Yes · github.com, 21 Sept 2026
Download tracking: No · github.com, 21 Sept 2026
Formats: The Docker Hub overview says HRConvert2 supports 488 formats across documents, ebooks, comics, spreadsheets, presentations, images, audio, video, streams, 3D models, CAD drawings, vector graphics, subtitles, and archives. · hub.docker.com, 11 Oct 2026
Free plan: Yes · github.com, 21 Sept 2026
Installation: The maker documents installation from the source repository or as a Docker image, and the Docker run command requires SYS_ADMIN for conversion sandboxing. · github.com, 11 Oct 2026
Interfaces: The product includes three interfaces, seven color schemes, and right-to-left language support for Arabic, Hebrew, Persian, Urdu, and Syriac. · hub.docker.com, 11 Oct 2026
Limits and maintenance: HRConvert2 does not update or patch dependencies automatically, and PHP can impose upload size limits that require administrator configuration. · github.com, 11 Oct 2026
OCR and conversion features: Features include OCR for PDFs and images, OpenSCAD rendering, and live stream capture and re-encoding from M3U8 playlists. · hub.docker.com, 11 Oct 2026
Privacy: The maker says conversions happen locally and nothing is transmitted; the application has no accounts, sessions, cookies, database, tracking, analytics, or telemetry. · hub.docker.com, 11 Oct 2026
Purpose: HRConvert2 is a self-hosted file conversion server that converts files on hardware you control. · hub.docker.com, 11 Oct 2026
Requirements: The maker lists Debian or Ubuntu Linux, Apache 2.4, PHP 8 or later, and bubblewrap as requirements; a Raspberry Pi Model B+ is described as sufficient. · hub.docker.com, 11 Oct 2026
Security: Conversions run in bubblewrap sandboxes, uploads are sanitized, and the server refuses a conversion if it cannot create the sandbox. · hub.docker.com, 11 Oct 2026
Sharing and languages: It supports temporary share links that expire with the file and includes 26 switchable languages. · hub.docker.com, 11 Oct 2026
Stream protection: Before FFMPEG processes a stream, HRConvert2 checks referenced hosts against private and reserved address ranges and pins their resolved IPs. · hub.docker.com, 11 Oct 2026
Support: The maker directs users to report problems and security issues through the GitHub repository. · github.com, 11 Oct 2026
Temporary files: Files are automatically deleted after a configurable age threshold, and each user gets isolated scratch space. · hub.docker.com, 11 Oct 2026
Virus scanning: Virus scanning is available with ClamAV or scanCore. · hub.docker.com, 11 Oct 2026

Where HRConvert2 stands on Freedom251

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