Everything it does.

260 conversions, 16 tools, optional AI models; all of it on your machine, and every job accounted for.

The tools we built in.

OpenConvert is more than a converter. It is meant to replace every web search you have ever run about your own files.

Image editing tools

Remove background: on-device matting, nothing uploaded, different AI models available
Upscale x2 or x4 without the usual blur using a local AI model
Invert colours, black and white
Compress to the quality you pick, without changing the format
Read the text out of a screenshot or a scan
Colour picker, sampled from the image itself
Convert between HEIC, JPEG, PNG, WebP, AVIF, TIFF, JPEG XL, SVG and camera raw

PDF tools

Merge documents into one file while keeping hyperlinks, or split one into many
Keep, drop, reorder, rotate or crop pages
Add a password, or remove one you know
Compress without touching a single image
Sign, with the signature kept on your machine
Render any page to an image
Read a scan into searchable text
PDF to Markdown, HTML, DOCX or ODT

Audio tools

Transcribe speech into text you can search
Remove background noise from a recording
Convert between FLAC, WAV, MP3, OGG and M4A
Pull the audio out of a video without re-encoding it

The OpenConvert image workspace with a subject cut out of its background onto transparency.

The same workspace enlarging an image four times on device.

The colour picker sampling a value straight out of the image.

Two PDFs loaded in OpenConvert, ready to merge into one file.

A document’s pages listed so they can be moved or dropped before the file is written.

A recording and the transcript OpenConvert produced from it locally.

The same recording with its background noise removed on this machine.

The Local AI Models.

Optional, off until you download them, and each one shows its size and its licence before it is fetched.

Remove Background 3 options

Small 11 MB

Cuts the subject out of a photo and leaves the rest transparent.

modnet 1.0 · u2netp 1.1.0 — Apache-2.0
Better 218 MB

Sharper edges on hair and fur, and finds subjects MODNet misses.

birefnet-lite lite · u2netp 1.1.0 — Apache-2.0 + MIT
Best 932 MB

The most accurate cut-out, and much the slowest -- minutes per image on a CPU.

birefnet-general general · u2netp 1.1.0 — Apache-2.0 + MIT

Image Enlarge 1 option

realesrgan-x4 64 MB

Quadruples an image's size without the usual blur.

realesrgan-x4 x4plus — BSD-3-Clause

Audio Transcription 2 options

Small 78 MB

Turns speech in an audio file into text you can read and search.

whisper-encoder base · whisper-decoder base · whisper-tokenizer base · silero-vad 5.0 — MIT
Best 1.0 GB

Noticeably more accurate, especially on accents and background noise. Much slower on a processor.

whisper-large-turbo-encoder large-v3-turbo · whisper-large-turbo-decoder large-v3-turbo · whisper-tokenizer base · silero-vad 5.0 — MIT

Audio Denoising 1 option

deepfilternet 8 MB

Removes hiss and background noise from speech recordings.

deepfilternet 3-v0.5.6 · deepfilternet-aux 3-v0.5.6 — MIT

The OpenConvert first-run panel offering four optional models, none installed.

Nothing is installed until this is answered, and the download is the only moment anything is fetched. Every model's licence →

The $ you save.

Background removal and file conversion are metered almost everywhere else. With OpenConvert they are free, for good.

Files a month

2001,0005,00010,000

What you'd pay per file elsewhere

$0.02 $0.05 $0.10 $0.20

A cloud tool, per year $48

OpenConvert, per year $0

A cloud tool, per year $120

OpenConvert, per year $0

A cloud tool, per year $240

OpenConvert, per year $0

A cloud tool, per year $480

OpenConvert, per year $0

A cloud tool, per year $240

OpenConvert, per year $0

A cloud tool, per year $600

OpenConvert, per year $0

A cloud tool, per year $1.2k

OpenConvert, per year $0

A cloud tool, per year $2.4k

OpenConvert, per year $0

A cloud tool, per year $1.2k

OpenConvert, per year $0

A cloud tool, per year $3k

OpenConvert, per year $0

A cloud tool, per year $6k

OpenConvert, per year $0

A cloud tool, per year $12k

OpenConvert, per year $0

A cloud tool, per year $2.4k

OpenConvert, per year $0

A cloud tool, per year $6k

OpenConvert, per year $0

A cloud tool, per year $12k

OpenConvert, per year $0

A cloud tool, per year $24k

OpenConvert, per year $0

receipts

Every job leaves a note.

Beside every output is a small file saying what happened to yours. On for every conversion, and switchable off in settings.

What ran: The engine and its exact version: oc-images, libheif 1.17.6
What it did to the file: Lossless, lossy, rebuilt or generated.
What it was allowed to do: The sandbox that actually engaged, and the memory and time limits
What it read: A hash of the exact bytes, so the input can be identified later
What it sent: The number of network calls. It is zero.

How the confinement it records actually works →

A receipt expanded in OpenConvert, listing engine, class, limits, hashes and network calls.

Example receipt JSON

openconvert convert bundle.zip -t tar --json captured on win32 x64

{
  "version": 1,
  "tool": "openconvert 0.1.1",
  "content_id": "845c65d1e47b19221591a3356f5e059c0e4e8dbf555344154e3537bb75c2e948",
  "detected": "zip",
  "declared_mismatch": null,
  "steps": [
    {
      "kind": "Extract { from: Zip, to: Tar }",
      "class": "A (lossless)",
      "engine": "oc-archive",
      "isolation": "sandboxed (read back in the worker): engaged ACG, AppContainer; not engaged CIG",
      "limits": {
        "memory_bytes": 1073741824,
        "decode_pixels": 268435456,
        "wall_time_secs": 120
      },
      "removed": [
        "zip member timestamps and permission bits"
      ]
    }
  ],
  "class": "A",
  "output": "bundle.tar",
  "output_bytes": 3072
}

Get OpenConvert

Apache-2.0, and every feature is in the free build.

Everything it does.

Can it do what you need?

The tools we built in.

The Local AI Models.

The $ you save.

Every job leaves a note.

Get OpenConvert