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Show HN: Refine – A Local Alternative to Grammarly

https://refine.sh
170•runjuu•5h ago•72 comments

How I build software quickly

https://evanhahn.com/how-i-build-software-quickly/
92•kiyanwang•4h ago•42 comments

Let's Learn x86-64 Assembly (2020)

https://gpfault.net/posts/asm-tut-0.txt.html
287•90s_dev•12h ago•65 comments

Show HN: Ten years of running every day, visualized

https://nodaysoff.run
517•friggeri•3d ago•214 comments

East Asian air cleanup likely contributed to acceleration in global warming

https://www.nature.com/articles/s43247-025-02527-3
41•defrost•1h ago•25 comments

Apple's Browser Engine Ban Persists, Even Under the DMA

https://open-web-advocacy.org/blog/apples-browser-engine-ban-persists-even-under-the-dma/
169•yashghelani•3h ago•90 comments

Emergent Misalignment: Narrow finetuning can produce broadly misaligned LLMs

https://arxiv.org/abs/2502.17424
120•martythemaniak•11h ago•34 comments

A Century of Quantum Mechanics

https://home.cern/news/news/physics/century-quantum-mechanics
48•bookofjoe•4d ago•38 comments

How does a screen work?

https://www.makingsoftware.com/chapters/how-a-screen-works
440•chkhd•20h ago•91 comments

Binding Application in Idris

https://andrevidela.com/blog/2025/binding-application/
31•matt_d•3d ago•1 comments

OpenCut: The open-source CapCut alternative

https://github.com/OpenCut-app/OpenCut
356•nateb2022•13h ago•113 comments

APKLab: Android Reverse-Engineering Workbench for VS Code

https://github.com/APKLab/APKLab
120•nateb2022•13h ago•8 comments

The underground cathedral protecting Tokyo from floods (2018)

https://www.bbc.com/future/article/20181129-the-underground-cathedral-protecting-tokyo-from-floods
119•barry-cotter•4d ago•38 comments

Google is tracking you even when you use DuckDuckGo

https://www.simpleanalytics.com/blog/google-is-tracking-you-even-when-you-use-duck-duck-go
12•basquiyacht•1h ago•3 comments

A technical look at Iran's internet shutdowns

https://zola.ink/blog/posts/a-technical-look-at-irans-internet-shutdown
194•znano•18h ago•84 comments

Telefónica DE shifts VMware support to Spinnaker due to cost

https://www.theregister.com/2025/07/11/telefnica_germany_shifts_vmware_support/
26•rbanffy•2h ago•8 comments

Show HN: FFmpeg in plain English – LLM-assisted FFmpeg in the browser

https://vidmix.app/ffmpeg-in-plain-english/
105•bjano•3d ago•24 comments

Concurrent Programming with Harmony

https://harmony.cs.cornell.edu/book/
7•todsacerdoti•3d ago•0 comments

Show HN: Built a desktop app to organize photos locally with duplicate detection

https://organizer.flipfocus.nl/
19•mcvanhassel•4d ago•20 comments

Show HN: ArchGW – An intelligent edge and service proxy for agents

https://github.com/katanemo/archgw/
88•honorable_coder•1d ago•9 comments

Hypercapitalism and the AI talent wars

https://blog.johnluttig.com/p/hypercapitalism-and-the-ai-talent
103•walterbell•14h ago•75 comments

Burning a Magnesium NeXT Cube (1993)

https://simson.net/ref/1993/cubefire.html
43•leoapagano•3d ago•16 comments

The Scourge of Arial (2001)

https://www.marksimonson.com/notebook/view/the-scourge-of-arial/
43•andsoitis•10h ago•29 comments

The upcoming GPT-3 moment for RL

https://www.mechanize.work/blog/the-upcoming-gpt-3-moment-for-rl/
207•jxmorris12•4d ago•87 comments

Myanmar’s proliferating scam centers

https://asia.nikkei.com/static/vdata/infographics/myanmar-scam-centers/
84•WaitWaitWha•6h ago•17 comments

C3 solved memory lifetimes with scopes

https://c3-lang.org/blog/forget-borrow-checkers-c3-solved-memory-lifetimes-with-scopes/
120•lerno•2d ago•95 comments

GLP-1s are breaking life insurance

https://www.glp1digest.com/p/how-glp-1s-are-breaking-life-insurance
332•alexslobodnik•16h ago•401 comments

Show HN: A Raycast-compatible launcher for Linux

https://github.com/ByteAtATime/raycast-linux
169•ByteAtATime•18h ago•50 comments

James Webb, Hubble space telescopes face reduction in operations

https://www.astronomy.com/science/james-webb-hubble-space-telescopes-face-reduction-in-operations-over-funding-shortfalls/
108•geox•8h ago•60 comments

Five companies now control over 90% of the restaurant food delivery market

https://marketsaintefficient.substack.com/p/five-companies-now-control-over-90
241•goinggetthem•14h ago•255 comments
Open in hackernews

Show HN: Refine – A Local Alternative to Grammarly

https://refine.sh
170•runjuu•5h ago

Comments

gbalduzzi•4h ago
Does this only supports English?
runjuu•4h ago
Theoretically, it could support over 140 languages, as it is powered by the newly released Gemma 3n model. However, I haven’t tested many languages yet.

In upcoming releases, Refine will support custom prompts and BYOK (Bring Your Own Key), allowing you to use any large language model you want.

pyman•2h ago
What's the rationale behind adding BYOK? Or the advantages?

You do realise you're already using an optimised model built for everyday devices, and that model includes some serious innovations in parameter-efficient processing, right?

You're a great developer, and it looks like you're thinking about adding features like BYOK quickly to please more users. But in doing that, you might be missing the real innovation you've already created. You've basically built a version of Grammarly without the privacy issues that make most IT departments ban it.

No one wants Grammarly or your tool sending corporate emails or documents to a language model. Privacy is what sets you apart from Grammarly. It's your biggest feature right now. Add a big table to your site comparing your products privacy with Grammarly's. That's your strongest selling point, and probably the only feature that can truly compete with the big players.

My advice? Keep improving the app, but keep the model local. Keep it private. That's the killer feature you've got.

planb•4h ago
Seams weird to not have "How does this compare to Apple Intelligence Writing Tools" at least in the FAQ. Maybe refine is better or has more features, but the page doesn't even seem to acknowledge that a system level feature like this exists.
Nicell•4h ago
Neat idea. I see why the fluency feature is off by default. It constantly rewords things, adds random quotations, or does something pretty silly https://imgur.com/oVSWmtN

The Grammar feature seems to have weird suggestions/cycles too on a little bit more testing. Curious to see how this improves. A local only, one-time-purchase grammarly alternative is appealing!

mirrormaster•4h ago
Isn't privacy a concern? How do consumers ensure that data is not going to captured in a future update without it being open source or having third party security audits?
awestroke•3h ago
That's a concern with all apps ever so idk what answer you're expecting
mananaysiempre•3h ago
Except the open-source ones, or sandboxed[1] ones without any auto-update functionality (not sure if this app has any).

[1] Loosely; I’d say not referencing any networking entrypoints or dlsym() also counts, as working around that would be very non-deniably malicious.

Deukhoofd•4h ago
Does anyone know how this compares to other products in its field, such as LanguageTool and Harper? LanguageTool can be hosted locally, and Harper runs entirely as an extension, so I'm interested in how the spelling and grammar checks compare.
boramalper•2h ago
+1. Also worth noting that both LanguageTool [0] and Harper [1] are FOSS.

[0] https://languagetool.org/

[1] https://writewithharper.com/

raegis•1h ago
I just tested both on the text "Look Dick. See Jane. Jane run home. I says you go home to. They eats dinner." LanguageTool does what I would expect. Harper does not. However, both whine about two spaces after a period.

Edit: Alas, Hacker News also removes the extra space after periods.

codesnik•1h ago
browser rendering does. You'd need white-space: pre-wrap rule to retain double spaces.
dreamcompiler•1h ago
Extra space after periods is never correct with proportionally-spaced fonts, which is why all browsers remove it by default.

Two spaces after periods is a kludge invented for typewriters that had monospaced fonts and touch typing teachers need to stop teaching it in the modern era where most writing uses proportional fonts.

dkga•39m ago
Curiously, it‘s also a tell-tale sign that a North-American typed the text.
FabHK•15m ago
Just as a space before colons or exclamation marks is a sign that someone francophone typed it.
smartmic•3h ago
Worth to mention as another alternative: Harper[0]

[0]: https://writewithharper.com/

patrakov•3h ago
Harper is so basic that I can't recommend it.

Does not catch a singular/plural discrepancy between the subject and the verb in a sentence--a common mistake when the expressed thought applies equally to one thing or to many things.

Does not catch a missed indefinite article--a common mistake for speakers of languages that don't have articles. Similarly, does not catch the use of the indefinite article for a thing already mentioned before.

Does not even catch the obvious "don;t" typo.

InsideOutSanta•3h ago
This is precisely what I've been hoping somebody would build. In my initial testing, it works well. I can even mix sentences with different languages, and it still makes correct suggestions.

The fluency suggestions are seemingly largely malfunctioning. It frequently suggests starting and ending sentences with quotes, although it also makes some useful suggestions. There seems to be an issue with analysis running synchronized, or something like that; when I type into a text field and Refine starts to run, it often blocks text entry. Selecting a suggested replacement blocks the app for half a second or so. Neither of these problems occurs with Grammarly or Language Tool. I also noticed a bunch of issues that Grammarly catches (like verb agreement) that Refine does not.

But this is an amazing first release and extremely promising. Congrats!

nk8620•3h ago
why is there no open source alternatives to this? Seems ripe to be just built.
janpmz•3h ago
How big is the model that powers this?
patrakov•3h ago
8B (Gemma 3n)
pyman•2h ago
https://ai.google.dev/gemma/docs/gemma-3n
Yoric•3h ago
What I'd be interested in would be something I could host on my local server (e.g. with ollama) to get suggestions on my laptop, where I write typst or markdown with Zed or VSCode.

I realize I'm a niche :)

Does anybody know of such a tool?

Yeri•3h ago
I'm missing some information on how this works (a LLM? which? Do I need to bring an API key? Does this work offline?) and what I can expect in terms of performance/battery hit.
parkcedar•3h ago
> Lightning Fast. Local processing means instant results without internet dependency or delays. > Always Available. Works offline, on flights, in coffee shops, anywhere you write.

Two of your 4 questions were answered in the first content block

zipping1549•2h ago
Considering that it mentions offline capability I'd say local tiny LLM.
d3m0t3p•2h ago
It is Gemma 3n, I can't give feedback yet on the battery hit, But I would not expect anything bad as these models have been developed for much smaller devices (Phones)
diimdeep•3h ago
It does this

    This phrase is offensive and violates my safety guidelines. Therefore, I will not revise it. I am programmed to avoid generating responses that are obscene, or that contain profanity.
because what's under the hood is this, and prompts are hardcoded

unsloth/gemma-3n-E4B-it-GGUF

    You are a precision editor guided by a custom style manual. Your tasks are ordered by priority.
    Your primary rule is to consult the provided REFERENCE DICTIONARY. Any term on this list is correct and must be preserved exactly as written.
    Your secondary rule is to refine phrasing and sentence structure to improve clarity, conciseness, and flow. The goal is to make the text read more naturally and professionally, while **strictly preserving the author's core meaning and tone.**
    Your final rule is to output ONLY the clean, revised text. You MUST NOT add any commentary, greetings, or explanations.
    REFERENCE DICTIONARY:
    {{dictionary_words}}
    Revise the following:
    "{{sentence}}"

    You are an expert editor. Your single most important goal is to improve the fluency and clarity of the following text while STRICTLY PRESERVING the author's original voice and meaning.
    You MUST follow these rules:
    1.  Only rephrase sentences that are genuinely awkward or unclear.
    2.  Never make changes for purely stylistic preference.
    Return ONLY the clean, revised text.
    Revise the following:
    "{{sentence}}"
    {{dictionary_words}}

    You are a silent grammar correction engine with a custom style guide.
    Your primary rule is to consult the provided REFERENCE DICTIONARY. Any term on this list is correct and must be preserved exactly as written.
    Your secondary rule is to correct all other grammar, spelling, and punctuation errors in the main text.
    Your final rule is to output ONLY the clean, corrected text. You MUST NOT add any commentary, greetings, or explanations.
    REFERENCE DICTIONARY:
    {{dictionary_words}}
    Correct the following:
    "{{sentence}}"
    You are a silent grammar correction engine. Your sole function is to receive text and output the corrected version. You MUST NOT add any commentary, greetings, or explanations. You will only return the clean, corrected text.
    Correct the following:
    "{{sentence}}"
Inviz•3h ago
Couldnt make it to show suggestions in vscode/cursor. I would like to use the tool, but i'd expect it to work consistently across all widgets in the system (i.e. like superwhisper). Is there a technical limitation here or my misconfiguration of things?
cjs_ac•2h ago
The screenshot shows the (corrected) example sentence:

> Sometimes I still make mistakes with articles and prepositions, but my grammar is getting better every day I practice.

In American/Simplified English, this is grammatically correct. However, in 'full fat' English, practice is a noun, whereas practise is a verb; e.g.:

> I go to my practice to practise medicine.

The problem I have with this website is that it's entirely concerned with peripheral issues. The product respects my privacy - good. The product is performant - good. The product doesn't require an Internet connection - good. The product works in many writing apps - good. The product has transparent pricing - good. But I don't give a shit about any of this until you convince me that this will consistently do the correct thing, and this website singularly fails to achieve this.

tossandthrow•2h ago
I get this.

> ... in 'full fat' English ...

English is a bastard of a language and getting messier every day as new nations adopt it is their standard language.

Setting the bar where it is well written and unambiguously understandable is IMHO completely fine for a 15$ product.

Having a text spell checked to comply with contemporary Oxford English is likely not the goal of this product.

cjs_ac•2h ago
> English is a bastard of a language and getting messier every day as new nations adopt it is their standard language.

I disagree strenuously with this idea, because it suggests that there is one 'big' English in which anything goes. A better idea is the one of the register[0]: there are many Englishes, many sets of rules. Different rules are used in different regions, by different groups of people, and have different connotations (e.g., the King James Bible was intentionally written in a form of English that was considered archaic at the time because that would make it sound more grandiose).

If I were to use this tool, I'd be using it to ensure that whatever I'm writing is well-received by my intended audience. Because English usage is so varied, I would need to be able to control the register that it uses to ensure that the output is suitable. The fact that the product website doesn't even mention a list of supported languages, let alone supported dialects and registers within those languages, has a very everyone can see what a horse is kind of feeling[1].

[0] https://en.wikipedia.org/wiki/Register_(sociolinguistics)

[1] https://en.wikipedia.org/wiki/Nowe_Ateny

physicsguy•1h ago
You still need to adapt it to where you are though, people expect this because it causes misunderstandings. If I as a British person go to the US, I know that I can't ask people to go and buy some booze from the off-license and when finished ask them to put their aluminium can in the bin ready for the rubbish lorry while wearing their jumper because that sounds anachronistic.
projektfu•32m ago
Not too mention that a jumper in the US is closer to a pinafore.
zoklet-enjoyer•15m ago
I'm American and have no idea what a pinafore or American jumper is. I know a jumper is a hoodie because I lived in Australia a while ago. But that's not a word I ever hear here.
physicsguy•4m ago
Yes, I'm aware, a colleague moved to Berkeley and relayed a story where he confused a lot of people :)
Normal_gaussian•2h ago
Lets be fair here, this tool is new - the domain was registered on Saturday.

What you suggest does seem like a good early doors feature; but the cut they've made seems to be the right one to prove market potential.

cjs_ac•2h ago
It's fine if the tool has severe limitations at this stage. However, it's crucial to clearly state what those limitations are: not only does it prevent the flurry of complaints and chargebacks from customers who were disappointed that their specific case is unsupported, but it's also an opportunity to introduce a 'we're on this journey together' aspect that helps to make customers emotionally invested in the product.
adastra22•1h ago
So you’re saying that for most English speakers it was correct, and that’s a problem?
vintagedave•1h ago
There are many different Englishes. I would bet that this tool does not handle Indian or Malaysian dialects.

British English is still influential over most of the Commonwealth, ie a large number of countries.

dreamcompiler•1h ago
So apparently the tool is slanted toward American English where the non-word practise is properly treated as a spelling error like colour.

If you use these words in writing for Americans and you are not a citizen of the British Commonwealth, you instantly mark yourself as arrogant.

vintagedave•1h ago
I'm interested in this - I am from the Commonwealth and I do use those words, including when I forget with American colleagues.

It never occurred to me that this could ever be perceived as arrogant (even if only when referring to someone with a different background.) And I wouldn't have thought it would mean anything more than a certain language cosmopolitanism, lah ;) (Hope that joke comes through! It's been decades since I had much exposure to Malaysian English.) Can you explain why this might be, please?

dreamcompiler•47m ago
Speaking for myself (an American), when I read published work that uses British spellings and I know the author is American, it feels to me that the author thinks American spellings are somehow vulgar or improper and he/she is trying to rise above our shameful misspellings.

British Commonwealth authors (well, really any author I know to be not from the USA) get a pass because these are the spellings they were taught. Nothing wrong with that.

This is a phenomenon I've only noticed in the last two decades or so. I don't know if American students are now being (wrongly) taught British spellings in school or they merely think their writing will carry more weight if it has a British "accent" but it just seems arrogant to me.

The OED is a useful resource but it is not our dictionary of final arbitration. Americans should use the American Heritage Dictionary.

butshouldyou•51m ago
Huge quantities of english speakers, who are not from the Commonwealth, learn British English.
beAbU•46m ago
> and you are not a citizen of the British Commonwealth

What do you regard as the British Commonwealth, and what variant of English spelling to you expect people to use who are not part of this grouping?

Just so that you know, in case you don't, "US English" is used just about exclusively in the US, and UK English is used in most of the rest of the world, despite the fact that most of our devices incorrectly default to US English.

dkga•43m ago
I work at an international organisation, and can confirm. My understanding is that is that at the international level, only the US-based international organisations use US English.

To be sure, I don‘t have any dog in this fight, just highlighting a fact from my experience that many here might not know.

JLCarveth•33m ago
Americans finding anyone else arrogant is quite rich.
londons_explore•2h ago
> Powered by local AI models

I worry that this will make my writing more likely to fail an AI coursework detector, which could really impact my life. The risk just isn't worth it till someone has tested the output through all the big players (turnitin etc.)

raincole•39m ago
If I use correct punctuation marks my work will be more likely to be \detected\ as AI written; The risk just isn"t worth it so I never do that^
FabHK•10m ago
It's hilarious, on some other sites one is immediately accused of using ChatGPT when using the n-dash (–) or m-dash (—) instead of the hyphen (-). Not an issue with the monospaced font here. ETA: I stand corrected.
admiralrohan•2h ago
If you are running local LLMs what is the hardware requirement in my machine? Don't see any mention of that.
ggerganov•12m ago
Gemma 3n (the model used by this app) would run on any Apple Silicon device (even with 8GB RAM).
smcleod•2h ago
How well does it handle standard international English? So many of the tools I've seen seem to only support American English.
Andrew_nenakhov•1h ago
Speaking of which, isn't it time to consider American English to be the standard one?

Colour and licence are so quaint.

smcleod•1h ago
Well, only Americans use it. There's no point in arguing about it your version of a language is better or worse but for the rest of the world it's incredibly annoying having to correct Zs with Ss when using LLMs or American only software.
Andrew_nenakhov•1h ago
I'm actually Russian. The whole world uses American English, by virtue of US dominance in all important technical and cultural spheres.
smcleod•1h ago
"The only whole world uses American English" ... I think you might be living in a bubble. It sticks out like a sore thumb.
larnon•1h ago
He is actually correct. I am neither American nor English.
bigDinosaur•44m ago
Commonwealth nations tend to not use American English. They form a fairly major part of the world.
richrichardsson•1h ago
I could care less about this attempt at trolling, but I won't.

We have enough American cultural hegemony as it is. It frustrates me no end that I regularly am unable[1] to configure software to use my preferred version of English.

[1] or it's extremely difficult. CLion I'm looking at you; every available option I have is set to British English, but still you insist on telling me my Colours should be corrected to Color etc. :(

adastra22•1h ago
English is a bastard language of French and Saxon. But we don’t get upset over that because Britain made the world English. Now the USA is making the world American. That ship has sailed.
jasekt•2h ago
Wonderful! I've given it a go, works in Apple's Notes app, but it does not seem to trigger suggestions in Chrome, Firefox or Slack. It does however highlight misspellings there. Any idea what can I do to enable suggestions there? I was looking for a product like this.
drowe859•21m ago
Same! Interested in this but need it to work for Slack, where I often type more informally and don't take the time I should to proofread.
gardnr•2h ago
You can use a local instance of LanguageTool in a docker container for this:

https://github.com/gardner/LocalLanguageTool

DonsDiscountGas•1h ago
A lot of people would rather pay $15 than mess with docker containers
nusl•1h ago
I've installed it to give it a try but it does absolutely nothing in any application I use. I did give it required permissions.
gregjw•41m ago
It'd be neat if there was an open source solution this polished.
utf_8x•30m ago
Holy crap, a local-only app with one-time purchase *and* a free demo? You don't see that very often these days
AbstractH24•28m ago
My biggest problem with Grammarly is how buggy it is. How often it doesn’t work as intended and either messes up formatting or doesn’t change the text when I click.

Does Refine solve this?

atmosx•24m ago
I would pay 50$ a year if this had a vim integration.
rsoury•10m ago
If this were open source AGPL it'd be an insta-download.
wkjagt•1m ago
Very cool product. And thank you for not making it a subscription.

> Can’t find the answer you’re looking for? Feel free to sent us an email at support@refine.sh

Should be "send". Especially with this kind of product, you shouldn't have grammar mistakes on the website :)