If you study the Bible on Linux or Windows and want a tool with real depth, Xiphos is one of the most feature-rich options available — and it's completely free.^1
Built on The SWORD Project by the CrossWire Bible Society, Xiphos gives you access to over 400 Bible modules in more than 150 languages, along with commentaries, dictionaries, maps, and original-language tools.^2 Its tabbed interface lets you view multiple translations, commentaries, and references side by side. Fast indexed search covers entire books in moments, including Strong's numbers and morphology. A pseudo-interlinear display arranges Greek and Hebrew data directly beneath each word for clean readability, and the built-in text-to-speech engine can read passages aloud.^3
Xiphos (Greek: ξίφος, meaning "sword") takes its name from Hebrews 4:12 — "the word of God is living and active, sharper than any two-edged sword." Originally called GnomeSword, the project has been actively developed since 2000 by a volunteer team of 49+ contributors. It's open-source under the GPL-2.0 license, available on Flathub with over 668 monthly downloads, and the latest release (v4.3.2, April 2025) shows continued momentum with active development ongoing as of April 2026.^4
Recent development highlights include multi-column display for wide monitors (v4.3.1), tab re-ordering via mouse drag, a new Vietnamese interface translation, migration from deprecated dbus-glib to GDBus, and numerous UI polish improvements.^6
Why Christians Love It"This has been my favorite Bible software for the last three or four years. With a couple exceptions it behaves exactly like I would want it to if I had written it. The developers have done a great job."^7
"This is an amazing piece of good quality software. The fact that it is open-source and free just adds to its charm. Its SWORD engine makes it compatible with hundreds of resources."^7
"This app is really helpful in understanding God's word. I like especially per verse annotations."^7
Notable- Part of The SWORD Project family by the CrossWire Bible Society, a long-standing Christian open-source initiative^2
- Interface translated into 30+ languages with strong right-to-left language support (Hebrew, Arabic, Farsi)^3
- Supports user-created content: personal journals, prayer lists, and commentaries^3
- BibleSync protocol enables shared navigation for group study sessions^5
- Available via Flatpak (Flathub), Linux package managers, and direct Windows download^1
- Active development: 4,331 commits, 250 GitHub stars, 49 contributors as of April 2026^4
