voidflare
voidflareCraft your conversion, always offline.

OFFLINE FILE CONVERTERS FOR WINDOWS

Drop a file.
Pick a format.
It never leaves your PC.

Convert Office documents, PDF, DWG, images, audio, video and e-books entirely on your machine. Nothing to install, nothing uploaded, no account.

DOWNLOAD FOR WINDOWSVIEW ON GITHUB ↗v0.3.5 · HUB · 9 MB

What file do you have?

Pick it and see what it can become.

YOU PICKED
.DOCX
IT CAN BECOME

Nine apps, one hub

EACH APP CARRIES ITS OWN ENGINE
DOC

Word to PDF

DOCX, DOC, RTF and ODT to PDF, one file or a whole folder.

XLS

Excel to PDF

XLSX, CSV and TSV spreadsheets to PDF. No Office needed.

PPT

Slides to PDF

PowerPoint presentations to PDF, slide for slide.

PDF

PDF Tools

Convert to Word, PowerPoint, HTML, RTF, text or pictures. Merge, split, extract pages, shrink, OCR.

DWG

DWG to PDF

Drawings to PDF: the sheets merged or separate, or the whole drawing on one page.

IMG

Image Converter

Convert pictures between PNG, JPG, WebP, TIFF, BMP and more.

AUD

Audio Converter

Convert audio to WAV, FLAC or AIFF (no MP3 output).

VID

Video Converter

Convert video to MP4, ProRes or GIF, or keep just the sound.

EPUB

E-book Converter

EPUB and Kindle (AZW3, MOBI) books to EPUB, text, HTML, PDF or Word, and back. DRM-protected books are refused.

FOR LLMS

voidflare-cli.exe and an MCP server let Claude and other AI assistants convert your files, only inside folders you allow.

Available in English, Italiano, Español, Français and Deutsch.

Offline is the point, not a feature.

  • ✓Files are converted on your PC and never sent anywhere.
  • ✓No account, no sign-in, no telemetry to switch off.
  • ✓No Microsoft Office or any other program required.
  • ✓Open source, with every licence and credit in the folder.

Who does the converting?

Almost every conversion is done by a command-line engine of the ArtCraft open-source suite (WordCraft, GridCraft, DeckCraft, PdfCraft, CADCraft, PhotoCraft, SoundCraft and FilmCraft), written by its authors and used under their MIT OR Apache-2.0 licences. The exception is reading and writing EPUB and Kindle books, which is our own Rust code. voidflare adds the drag-and-drop interface. Each app is installed with its engine and that engine's licences, or, if your PC already has a version of ArtCraft that we have tested, it uses yours and does not download a second copy.

It is an independent project, not affiliated with or endorsed by the ArtCraft team. Credits and licences ↗

Is it safe to run?

What you can check yourself, and what is still missing.

Get voidflare

Windows 10 and 11 · portable · v0.3.5

Download the small hub, unzip it to a short path such as C:\voidflare and run voidflare.exe. Then press Install on the converters you need: each one is a separate download (a few MB, plus its engine unless your PC already has a tested ArtCraft one), checked against the release's SHA-256 before it is installed. Nothing is downloaded until you click.

No network where you work? The full bundle has everything in one file (376 MB).

The programs are not code-signed yet, so Windows SmartScreen may warn on first run: choose More info, then Run anyway.

The buttons link straight to the files on GitHub Releases, nothing is served from this site. Check them after downloading:

HUB · SHA-256 783ba482d7c2484072de1e8011313c50640a46bbdae6b31e2d55d982f4c6874d

FULL BUNDLE · SHA-256 fd0006a9df718be6effc876028fe28dd295a023aa439ff762dc74e18068c0d3c

45 downloads so far (hub and full bundle, all versions)

Release page ↗ · Source code ↗ · Build it yourself ↗

★ If voidflare is useful to you, a star on GitHub helps other people find it.

WINDOWS 10 / 11 · AVAILABLE
DOWNLOAD HUB · 9 MBFULL BUNDLE · 376 MB
LINUX · COMING SOON
DOWNLOAD FOR LINUX

Planned. Watch the repository on GitHub to hear when it lands.