Jasper alternatives · Writing
Open-source alternatives to Jasper
Jasper is not described as open source on its own site. 19 of the 100 other writing tools in this directory are open source, according to their own sites.
Jasper is a paid product with a free trial, starting at $59 per seat / month, billed yearly. 18 of them are free or have a free plan.
19 tools · Listings checked up to Nov 12, 2026 · Where the facts come from
The 12 closest to Jasper
- Free plan · from $4.99/mo
LanguageTool
Grammar and style checker for more than 30 languages
- LanguageTool starts at $4.99 per month on a 2-year plan ($119.80); $69.90 billed annually. Jasper starts at $59 per seat / month, billed yearly.
- LanguageTool has a free plan. Jasper does not, though it has a free trial.
- Only LanguageTool lists macOS, Windows and iOS apps.
- LanguageTool is open source and self-hostable, according to its own site.
- Free
LibreOffice Writer
Free, open-source word processor for Windows, macOS and Linux
- LibreOffice Writer is free. Jasper starts at $59 per seat / month, billed yearly.
- LibreOffice Writer has a free plan. Jasper does not, though it has a free trial.
- Only LibreOffice Writer lists Windows, macOS and Linux apps.
- Only Jasper lists a web app.
- Free plan · from $7.99/mo
Typst
Markup-based typesetting system with a collaborative web app
- Typst starts at $7.99 per month, billed monthly ($79.99 billed yearly). Jasper starts at $59 per seat / month, billed yearly.
- Typst has a free plan. Jasper does not, though it has a free trial.
- Only Typst lists macOS, Windows and Linux apps.
- Only Jasper lists a browser extension.
- Free
Zettlr
Free, open-source Markdown editor for academic writing
- Zettlr is free. Jasper starts at $59 per seat / month, billed yearly.
- Zettlr has a free plan. Jasper does not, though it has a free trial.
- Only Zettlr lists macOS, Windows and Linux apps.
- Only Jasper lists a web app.
- Free
FocusWriter
Free distraction-free word processor for Windows and Linux
- FocusWriter is free. Jasper starts at $59 per seat / month, billed yearly.
- FocusWriter has a free plan. Jasper does not, though it has a free trial.
- Only FocusWriter lists Windows and Linux apps.
- Only Jasper lists a web app.
- Free
ghostwriter
Free, open-source Markdown editor from KDE for focused writing
- ghostwriter is free. Jasper starts at $59 per seat / month, billed yearly.
- ghostwriter has a free plan. Jasper does not, though it has a free trial.
- Only ghostwriter lists Windows and Linux apps.
- Only Jasper lists a web app.
- Free
MarkText
Free, open-source Markdown editor with in-place live rendering
- MarkText is free. Jasper starts at $59 per seat / month, billed yearly.
- MarkText has a free plan. Jasper does not, though it has a free trial.
- Only MarkText lists macOS, Windows and Linux apps.
- Only Jasper lists a web app.
- Free
Manuskript
Free, open-source novel planner with an outliner and index cards
- Manuskript is free. Jasper starts at $59 per seat / month, billed yearly.
- Manuskript has a free plan. Jasper does not, though it has a free trial.
- Only Manuskript lists Windows, Linux and macOS apps.
- Only Jasper lists a web app.
- Free
novelWriter
Free, open-source plain-text editor for writing novels
- novelWriter is free. Jasper starts at $59 per seat / month, billed yearly.
- novelWriter has a free plan. Jasper does not, though it has a free trial.
- Only novelWriter lists Linux and Windows apps.
- Only Jasper lists a web app.
- Free plan · from $3.49/mo
bibisco
Novel planning and writing software built around characters
- bibisco starts at $3.49 per month for Everywhere sync; desktop Supporters Edition is $69 one-time. Jasper starts at $59 per seat / month, billed yearly.
- bibisco has a free plan. Jasper does not, though it has a free trial.
- Only bibisco lists Windows, macOS, Linux, iOS and Android apps.
- Only Jasper lists a web app.
- Free
Trelby
Free, open-source screenwriting program for desktop
- Trelby is free. Jasper starts at $59 per seat / month, billed yearly.
- Trelby has a free plan. Jasper does not, though it has a free trial.
- Only Trelby lists Windows, macOS and Linux apps.
- Only Jasper lists a web app.
- Free plan · from $11.99 one-time
Beat
Free, open-source Fountain screenwriting app for Mac and iOS
- Beat starts at $11.99 one-time for the iOS app. Jasper starts at $59 per seat / month, billed yearly.
- Beat has a free plan. Jasper does not, though it has a free trial.
- Only Beat lists macOS and iOS apps.
- Only Jasper lists a web app.
Common questions
Is there an open-source alternative to Jasper?
Yes. LanguageTool, LibreOffice Writer, Typst, Zettlr, FocusWriter, ghostwriter, MarkText, Manuskript and 11 more are open source, according to their own sites.
Is Jasper open source?
Jasper is not described as open source on its own site. The listing was checked on Oct 5, 2026 against the pages it cites.
Which of these writing tools are free?
LanguageTool, LibreOffice Writer, Typst, Zettlr, FocusWriter, ghostwriter, MarkText, Manuskript and 10 more are free or have a free plan.
When was this checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and the order is how close each is to Jasper: the alternatives its listing names first, then the tools that share the most features with it.