We're making a desktop app. elijahpotter.dev/articles/bui...

Someone recently told me that their sister's grades improved by a whole letter when they started using Harper. Warm fuzzy feelings all around.

Harper is a small project, but we have extremely lofty ambitions. It's more important than ever that we work together to keep the act of writing sacred. What you write should be yours, no matter what. elijahpotter.dev/articles/we-...

Hey all! We're finally releasing Harper 2.0. Why? It isn't because we have any new groundbreaking features in this release, because we don't let major versioning stop us from pushing those out as soon as they're ready. It's because we have some breaking changes. elijahpotter.dev/articles/har...

I've found that uBlock Origin filter lists are a surprisingly effective way to turn attention grabbing social media websites into something tolerable.

"Grammarly’s Expert Review feature serves as a case in point for how people feel about generative AI at the moment..."

I realized I was focusing on the process of getting stuff done, instead of focusing on how to actually get that same stuff done. That is the wrong way to go about #productivity. elijahpotter.dev/articles/out...

AI agents can be enormously helpful. The key word is "can". It is not always a guarantee. elijahpotter.dev/articles/whe...

I've been watching this project for some time now. What would it take to package it into a Tauri app?

It looks like we may need to start pressing harder on the desktop app experience. allnarfedup.blog/2026/01/16/b...

Grammarly is systematically destroying their user's trust in their product. Watching @reckless.bsky.social's interview gives me the impression that their CEO is incredibly disconnected from the experiences of their users. www.theverge.com/podcast/8987...

TIL: Apple and Microsoft have better credit ratings than the U.S. Government

Riveting www.youtube.com/watch?v=T_tA...

To provide a framework which reduces the amount of time that overly complex patch requests produced by LLMs can take to address, I've put together this policy. I hope this helps streamline the process and make it easier to handle these requests efficiently. elijahpotter.dev/articles/har...

My thirst for the written word had given me a superpower. elijahpotter.dev/articles/my_...

These are exactly the kinds of problems Harper avoids by virtue of being open source.

Take back your writing with writewithharper.com

I know all press is good press... but there are limits. If it feels like Grammarly does not respect your right to digital sovereignty, it is because it does not. www.theverge.com/ai-artificia...

I've been seeing an increasingly prevalent trend of people proudly flaunting that they are writing with the assistance of AI. elijahpotter.dev/articles/do_... #AIwriting #ArtificialIntelligence #Creativity #ContentCreation

As an open source maintainer, I frequently both receive and create pull requests that could be labeled as slop. So my question becomes, how can I turn AI generated code from "slop" tier to "top tier"? elijahpotter.dev/articles/ref...

I've been thinking a lot about why so much software feels harmful, and it got me wondering how we can build software that truly serves humans. elijahpotter.dev/articles/bui... #oss

Harper will soon support LaTeX. github.com/Automattic/h...

Someone new is using Harper behind-the-scenes for grammar checking. Check out Tally! tally.johng.io/en

I saw that @chriswiegman.com just blogged about writing with Harper in VS Code. Great stuff. chriswiegman.com/2026/01/harp...

this is why data ownership (and sovereignty) is crucial! www.theverge.com/news/867244/...

@linkarzu.bsky.social's recent video is a great primer if you spend a ton of time in @neovim.io (like I do). It's true: Harper is getting better. www.youtube.com/watch?v=he8V...

AI Psychosis One of the most concerning trends I've seen is that, as people adopt AI, it captures those for whom it was designed. That previous sentence went through several revisions at various layers of intelligence... the spell-checker, grammar-checker, Grammarly, Harper, maybe more, all…

We love to see Harper getting some attention! Open source, private, and developer-focused. Give it a try! writewithharper.com

Great piece. I'm thrilled that this was the first result that popped up when I searched for "open source grammar checker". www.makeuseof.com/stopped-payi...

With Language Tool and Grammarly embracing AI, and somewhat questionable privacy practices to begin with, I am so thankful that Harper exists. It's everything I need and nothing I don't. https://writewithharper.com/ #grammar #extension

I've observed a high degree of specialization of language between academic fields. I've been thinking about how we can make Harper more helpful for the specialists. elijahpotter.dev/articles/ima...

Now there's an LSP for text. Harper is a modern grammar checker, open source, and you integrate it with your Markdown editor by adding an LSP config for Markdown. One doesn't exist for Markdown on Emacs (yet), but... :-) writewithharper.com/docs/integra...

Couldn't have put it better myself. www.maketecheasier.com/harper-vs-gr...

Someone has taken advantage of Tatum's open-source license and remixed it into something even more capable. I highly suggest you check out penview. elijahpotter.dev/articles/som... #nvim #productivity #coding

Harper sounds amazing! Ellipsus doesn't have any advanced grammar checking abilities today, but it's something we would like to look into in the future. Let's get in touch!

I recently did some snooping (through Dependabot) on what open source projects have been using Harper. Since I last checked, there are some new ones. elijahpotter.dev/articles/pro...

I've been experimenting with using Large Language Models (LLMs) to generate rules for my programming language, Weir, and I'm really excited about the potential. elijahpotter.dev/articles/gen...

I've been tweaking the keywords to make them more descriptive and less clunky – I replaced "declare" and "set" with "let" and "expr," and you can see the changes in the example code. elijahpotter.dev/articles/upd...

I'm excited to share that Harper can now apply title case to text! It's a simple but useful feature, especially for ensuring consistency in titles like the ones on this blog. elijahpotter.dev/articles/har...

I've been tinkering with a new language for expressing grammatical rules, with the goal of making it easier for people to create and share style guides that Harper can understand. If you all have any opinions on syntax or anything, let me know! elijahpotter.dev/articles/bui...

I was looking for grammar/spell-check language servers to use in Neovim and came across Harper (writewithharper.com) Turns out it also has extensions for Firefox/Chrome. I don't use Grammarly, but for people who do, could be a nicer, more private alternative — it's local-only and open-source.

It's nice to see Harper on this list. medium.com/macoclock/st...

It seems like Harper and @ellipsus.com share a lot of core values. Perhaps we could collaborate on something?

Today, we published Harper's 1.0.0 release. It's a huge milestone, and I'd like to discuss why it took so long, why we're doing it now, and what's next for the project. elijahpotter.dev/articles/har...

Our very own @ma.tt joined the TBPN crew to close out #StateOfTheWord yesterday. They talked about WordPress 6.9, open source, @beeper, and how AI is changing the web. Did you miss it? Check it out now. www.youtube.com/watch?v=eBQh...

If you had shown this article to the Elijah Potter from a year ago, he would have agreed with most of what it says. I was of the strong opinion that collaboration was fundamentally counterproductive to getting sh*t done. Since then, I've completely changed my tune. elijahpotter.dev/articles/re:...

Harper is in Cursor and VS Code · A grammar checker for your code editor · ilo.im/162w5w by Elijah Potter #Development #Extensions

“We adopted #rustlang for its security and are seeing a 1000x reduction in memory safety vulnerability density ... with Rust changes having a 4x lower rollback rate and spending 25% less time in code review, the safer path is now also the faster one.” security.googleblog.com/2025/11/rust...

For the orphans of Grammarly, I present Harper. Harper is a free open-source English grammar checker. It runs on-device, that means you have 100% certainty it doesn't violate your copyright by training large language models. FUCK🖕AI writewithharper.com

I find it very cool that harper (the grammar / prose) can correctly identify "a" vs "an" with initialisms