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Private Grammar Checker - Harper icon

Private Grammar Checker - Harper

The private grammar checker for 21st Century English

用户数40K当前公开安装规模
评分4.2商店平均评分
评论数101公开评论体量
Manifest 版本V3插件平台版本
7日增长0近 7 天净增用户
7日增长率0%相对周增长速度
视觉预览

Private Grammar Checker - Harper 媒体预览

3 项素材
趋势

用户增长趋势

按已采集快照查看用户数变化。

用户增长趋势

40K40K40K40K40K2026年7月15日2026年7月18日2026年7月21日最新值: 40K
评分趋势

近 7 日评分趋势

展示最近 7 日窗口内已采集的评分快照,辅助判断近期评分是否稳定。

7 日评分变化

起始值
4.14
最新值
4.17
7 日评分变化
+0.03
4.144.154.154.164.172026年7月15日2026年7月18日2026年7月21日最新值: 4.17
2026年7月15日2026年7月21日
增长概览

日/周/月增长表现

同口径展示 1 天、7 天、30 天的绝对增长与增长率。

1日增长持平
00%
7日增长持平
00%
30日增长增长
+10K+33.3%
技术摘要

版本、语言与抓取信息

查看发布时间、版本、支持语言、最近更新和抓取时间。

版本1.12.0
ManifestV3
大小15.46MiB
语言数1English
发布时间
最近更新
最近抓取
English
简介

插件简介

查看插件说明、主要功能和适用场景。

Harper is an English grammar checker designed to be just right. I created it after years of dealing with the shortcomings of the competition.

Grammarly was too expensive and too overbearing. Its suggestions lacked context, and were often just plain wrong. Not to mention: it's a privacy nightmare. Everything you write with Grammarly is sent to their servers. Their privacy policy claims they don't sell the data, but that doesn't mean they don't use it to train large language models and god knows what else. Not only that, but the round-trip-time of the network request makes revising your work all the more tedious.

LanguageTool is great, if you have gigabytes of RAM to spare and are willing to download the ~16GB n-gram dataset. Besides the memory requirements, I found LanguageTool too slow: it would take several seconds to lint even a moderate-size document.

That's why I created Harper: it is the grammar checker that fits my needs. Not only does it take milliseconds to lint a document, take less than 1/50th of LanguageTool's memory footprint, but it is also completely private. That's the power of open source.

评价

最新评论快照

查看最近评论和评分分布。

商店综合星级4.2Chrome 商店给出的聚合评分,包含只有打分但没有同步评论正文的情况
已同步评论均分3.9仅基于下方已同步评论正文计算
有内容评论70已同步的评论正文数量
总评分/评论数101Chrome 商店公开评分/评论计数

商店综合星级:4.2。下方星级分布只统计已同步评论正文;如果某个插件只有公开分数、没有真实评论正文,这里可能为空。

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37
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1
9
Ross Rose2026年7月2日
3

This app works great for google and other popular search engines. But I use Ecosia, and it doesn't work at all on that search engine. Can this be fixed?

版本 2.6.0语言 en
Tone Price2026年6月23日
5

Breath of fresh air compared to the other bloated options. It may not be perfect, but it beats the alternatives. Hopefully the developers continue improving on it!

版本 2.5.0语言 en
2 有用 · 0 无用
Elisabeth (witchygraph)2026年6月22日
5

I'd rather use something that's free to use and doesn't rely on AI than having to use extensions like Grammarly or SpellChecker. Of course there is still a lot of room for improvement, but that's what I'm cheering for. I'll keep reporting issues with incorrect reviews to give feedback and help the dev team develop Harper.

版本 2.5.0语言 en
2 有用 · 0 无用
David Becker2026年6月18日
3

It's ok, but it often suggests a single correction that is no where near the correct grammar. I understand it's still in development and will try it out again in the future, but for now it's less useful than Googles built in spell checker.

版本 2.5.0语言 en
1 有用 · 0 无用
Saiful Islam2026年6月16日
5

free, open-source, still developing. much love to the dev team <3

版本 2.5.0语言 en
Louis Hilden2026年6月11日
5

I'm so happy I don't have the Grammery keylogger installed anymore, it makes me want to cry.

版本 2.4.0语言 en
2 有用 · 0 无用
Eric Ketzer2026年5月28日
2

Ironically, it often wrongly says to write "too" for "to" or "then" for "than". It would need itself a spell checker. It needs a lot of improvement.

版本 2.2.1语言 en
4 有用 · 2 无用
Ari hollars2026年5月15日
5

As a dyslexic person who hates AI, this is a total lifesaver! I haven't encountered any bugs at the moment, and it doesn't lag my laptop at all.

版本 2.1.0语言 en
2 有用 · 1 无用
HxI리처드2026年5月9日
4

Works for me. I don't mind going an extra mile if there are any issues.

版本 2.1.0语言 en
1 有用 · 0 无用
Peter Laws2026年4月14日
2

Zendesk functionality is unreliable, works about 40% of the time, requiring a page refresh to restore functionality, sometimes just cutting out mid writing. The UI is really nice but the spell checker is quite limited, it really struggles to handle words where a letter should be repeated and has been missed.

版本 2.0.0语言 en
3 有用 · 0 无用