Fulgur

Spec sheet

Product

Fulgur is a native, GPU-accelerated text editor with file synchronization.Read 10 Oct 2026 · fulgur.app

Platforms

The official site lists Windows, macOS, and Linux as supported platforms.Read 9 Oct 2026 · fulgur.app

Free plan

YesRead 24 Sep 2026 · fulgur.app

License

Fulgur is licensed under Apache License 2.0.Read 10 Oct 2026 · github.com

Column editing

YesRead 24 Sep 2026 · fulgur.app

Development status

Fulgur is under active development.Read 10 Oct 2026 · fulgur.app

Downloads

The listed packages are a signed and notarized macOS Apple Silicon DMG, a Windows x86-64 installer, and Linux x86-64 or aarch64 AppImage or DEB packages.Read 10 Oct 2026 · github.com

Encrypted sync

Files shared between devices are end-to-end encrypted, and the sync server does not see plaintext.Read 10 Oct 2026 · github.com

File formats

The editor supports text-based file formats, including Markdown, CSV, and log files.Read 10 Oct 2026 · github.com

File sync

Fulgur shares text files across devices through Fulgurant, using end-to-end encryption.Read 9 Oct 2026 · fulgur.app

Large-file handling

YesRead 24 Sep 2026 · fulgur.app

Linux requirement

On Linux, storing sync encryption keys requires a running Secret Service provider such as GNOME Keyring or KWallet.Read 10 Oct 2026 · github.com

Markdown

Fulgur includes a Markdown formatting toolbar and preview.Read 10 Oct 2026 · fulgur.app

Multi-cursor editing

YesRead 24 Sep 2026 · fulgur.app

Offline use

Fulgurant is needed only for synchronization; other Fulgur features work standalone and offline.Read 9 Oct 2026 · fulgur.app

Pricing

The official site describes Fulgur as free to use and open source.Read 9 Oct 2026 · fulgur.app

Remote editing

Fulgur can edit files on remote machines over SSH and includes an integrated file browser.Read 10 Oct 2026 · github.com

Self-hosting

File synchronization uses Fulgurant, an open-source server that users can self-host.Read 10 Oct 2026 · fulgur.app

Standalone use

Fulgur’s features other than file synchronization work standalone and offline.Read 10 Oct 2026 · fulgur.app

Supported platforms

Windows,macOS,LinuxRead 24 Sep 2026 · fulgur.app

Synchronization setup

Fulgur generates a unique API key for each device to connect instances to a Fulgurant server.Read 9 Oct 2026 · fulgur.app

Syntax highlighting

The repository describes syntax highlighting for 60+ languages.Read 10 Oct 2026 · github.com

Technology

Fulgur is built with Rust and GPUI.Read 9 Oct 2026 · fulgur.app

Text formats

Fulgur supports text-based file formats and syntax highlighting for 50+ languages.Read 9 Oct 2026 · fulgur.app

Themes

Fulgur includes eight JSON-based themes and supports user-created themes that reload when saved.Read 10 Oct 2026 · github.com

Where Specifiction places it

• Text Editors#51 of 827.8