Tech riderRev. 20 Sept 2026
- 1Runs onWeb, Windows, Mac, Linux
- 2CostsFree plan
- 3Browser extensionYes
- 4Desktop appYes
4 lines stated Written from the maker's own pages: writewithharper.com
Overview
Harper is ranked #16 of 88 in grammar checkers on Specifiction. It runs on Web, Windows, macOS, Linux. There is a free plan.
Harper plans and pricing
All plansFree Free Grammar and spelling checking · Local processing · Apache-2.0 open-source license writewithharper.com · 20 Sept 2026
Compared on grammar checkers
- Free plan
- Yeswritewithharper.com
- Browser extension
- Yeswritewithharper.com
- Desktop app
- Yeswritewithharper.com
Facts
- Style suggestions
- Yeswritewithharper.com · 20 Sept 2026
- Languages supported
- 1writewithharper.com · 20 Sept 2026
Best Harper alternatives
See all 12 All accessCh 01 LanguageTool Free planBrowseriOS Free to start8.9 All accessCh 02 Sapling Free planFree trialAPI from $1/mo8.8 All accessCh 03 Grammarly Free planAndroidiOS from $12/mo8.6 All accessCh 04 Ginger AndroidAPI from $0.42/mo8.5 All accessCh 05 Trinka Free planAPIBrowser Free to start8.5 All accessCh 06 Wordvice AI Free planBrowserMac from $0.70/mo8.5
Where it ranks on Specifiction
- Best Grammar Checkers in 2026#16 of 88
- Best AI Grammar Checkers in 2026#12 of 26
Is Harper yours?
Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.
Sources
- writewithharper.com· checked 20 Sept 2026