# Free alternatives to Grammarly

> Grammarly (Pro) costs $144 a year. Free alternatives: LanguageTool (self-hosted server) and Harper. Data checked 2026-10-17.

- Page: https://stoprenting.dev/apps/grammarly/
- Category: Writing (https://stoprenting.dev/categories/writing/)
- Vendor: Grammarly
- Plan: Pro
- Price: $12/month, $144/year
- Billing: per month
- Price quote from the vendor's page: "Pro $12 USD"
- Price source: https://www.grammarly.com/plans (checked 2026-10-17)

## Alternatives

### LanguageTool (self-hosted server)

- Website: https://languagetool.org
- Repository: https://github.com/languagetool-org/languagetool (15,152 stars, last push 2026-10-17)
- License: LGPL-2.1
- Open source: yes, OSI-approved license
- Type: server app
- Linux: self-hosted server; web UI
- Self-hostable: yes
- More: https://stoprenting.dev/alternatives/languagetool-self-hosted-server/
- Checked: 2026-10-17

### Harper

- Website: https://writewithharper.com
- Repository: https://github.com/Automattic/harper (16,271 stars, last push 2026-10-10)
- License: Apache-2.0
- Open source: yes, OSI-approved license
- Type: desktop app
- Linux: Arch extra: harper
- Self-hostable: no
- Install: `sudo pacman -S harper`
- More: https://stoprenting.dev/alternatives/harper/
- Checked: 2026-10-17

## FAQ

### Is there a free alternative to Grammarly?

Yes. The 2 free alternatives are LanguageTool (self-hosted server) (open source, LGPL-2.1) and Harper (open source, Apache-2.0).

### How much does Grammarly cost?

Grammarly's Pro plan costs $12 a month, which is $144 a year (per month). Source: the official pricing page at grammarly.com, checked Oct 17, 2026.

### Which Grammarly alternatives run on Linux?

LanguageTool (self-hosted server) (self-hosted server; web UI) and Harper (Arch extra: harper).

### Can you self-host a Grammarly alternative?

Yes. LanguageTool (self-hosted server) runs on your own server. Harper is a desktop app.

### Are these Grammarly alternatives open source?

Yes. All 2 use OSI-approved open-source licenses: LanguageTool (self-hosted server) (LGPL-2.1) and Harper (Apache-2.0).

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Source: Stop Renting (https://stoprenting.dev). Methodology: https://stoprenting.dev/methodology/