Volt
About
Who makes Volt
Volt is a macOS text editor for files too big to load into memory, made by MarketVision AG in Switzerland. It is in private beta, and the waitlist is the way in.
Why does an editor for very large files exist?
Every editor is quick until the file is bigger than the machine. A 4 GB log, an export that came off a mainframe, a database dump somebody needs one line out of — at that size most editors either refuse the file or spend a minute loading it and another gigabyte holding it. Volt was written for exactly those files: a 4.23 GB log of 50.4 million lines opens in 2 milliseconds, on a few megabytes of memory, and stays that quick while you search it and edit it.
It is a full editor rather than a viewer, and it reads the awkward formats too:
- 119 programming languages across 433 file extensions.
- 219 character sets, including all 62 EBCDIC code pages.
- Nine kinds of line ending, from LF and CRLF to NEL, LS, PS and reversed CRLF.
- Mainframe records — IBM RDW and fixed-width — that have no line endings at all.
- Anything else, as a hex dump.
Who builds Volt?
MarketVision AG, a Swiss company. Volt is written in Swift with no third-party dependencies — no Java runtime, no Electron, no bundled browser engine — and ships as one binary of about six megabytes for Apple silicon.
How is it paid for, and what will it cost?
Pricing is not settled. Volt is in private beta and free for the people in it; the waitlist hears about pricing first, and is asked before it is decided. There is no advertising, no telemetry and no data business behind it — the application does not phone home. The website measures its visits with Google Analytics, and the privacy page says exactly what that records.
How do I get in touch?
Write to hello@volt-editor.com — about a file that will not open, a format that should be supported, a bug, or an invitation to the beta. Every message is read by the people who write the code.
MarketVision AG · Switzerland · marketvision.ch
How do I join the beta?
One email when the next round of invitations goes out, then one question about what to build next.