Try Proofbird Grammar

Try Proofbird Grammar

Check the grammar of a sentence in English, Italian, Spanish, French or German with Proofbird's models running inside your browser. Your text stays on your computer.

Made by proofbird on Hugging Face. These notes are Mindket's, written from its Space page and README; the app's own files and license are on Hugging Face.

About

What it is: This page runs Proofbird's grammar models inside your web browser. It checks a sentence in English, Italian, Spanish, French or German and suggests corrections.

The model for your language downloads once, at about 450 MB, and your browser keeps it. After that, the checking happens on your own computer, so the text you type stays there.

Who it suits: It suits writers, students and language learners who want a quick grammar check without sending text to a server. Developers can read how a grammar model runs in plain JavaScript.

Industry | Who uses it | How they use it | Example
Education | Language learners | Type a practice sentence and read the suggested fix | Checking a Spanish or German homework sentence
Publishing | Editors and writers | Test a sentence for grammar slips | Checking a line of English copy before sending it
Privacy-minded work | Anyone with sensitive text | Check a sentence without it leaving the computer | Testing wording from a private draft
AI development | Developers | Read gector.js and app.js to see how the model is run in a browser | Studying an on-device grammar model

Skip it if you want explanations for each change or a spell checker, since this page is the model on its own.

Where to use it: The page runs in these places.

• A web browser, on the Space's page at Hugging Face
• A web browser on Windows, macOS or Linux, from a local copy of the files

Use case | Who | What they get back
Check one sentence | Writers and students | Corrections and suggestions for that sentence
Try a model in a new language | Language learners | The same check in a second language
Study the browser port | Developers | A JavaScript file that mirrors the Python quickstart

How to set it up: Online you need only a browser and some disk room for the model. A local copy needs these.

• Python and pip, for the hf download command
• A web browser
• About 450 MB of browser storage for each language you try

1. Install the huggingface_hub package.
2. Download the Space's files into a folder with the hf command.
3. Move into that folder.
4. Open index.html in a web browser.

pip install -U huggingface_hub
hf download proofbird/try-grammar --repo-type space --local-dir try-grammar
cd try-grammar

How to use it: Open the Space's page, or index.html in your local copy, and choose the language you want. The model downloads the first time. Then type one sentence and read what it suggests. The page checks one sentence at a time.

Example: You open the page for English and wait for the model to download. You type a sentence with a mistake in it. The page returns a corrected version of the sentence and the suggestions behind it.

For newcomers and experts: If you are new, open the Space's page, wait for the first download and try a short sentence with one obvious mistake. The next visit is quicker because the browser keeps the model.

If you know the field, gector.js re-implements the quickstart.py of each model in JavaScript and runs the model through ONNX Runtime Web. The author compared it with the Python file on 2,549 gold sentences across the five models and reports identical token ids, corrections and suggestions. The trade-off is a large first download in exchange for no server.

Open the page and pick a language
The browser downloads the model once
You type a sentence
The model runs locally and suggests fixes

Good to know: This is the model alone. Compared with the full Proofbird app, the page lacks the guard rules, the spell checker and the per-change explanations.

• License: the page's own code is Apache-2.0. Four of the five models are Apache-2.0 and the Spanish one is CC BY 4.0
• Cost to run: none named
• Data it reaches: the model files that download into your browser. The text you type stays on your computer
• Not for: checking a whole document at once, since it checks one sentence at a time

On Hugging Face, 13 November 2026

• Likes: 1
• Built with: static
• License: apache-2.0

Links

• Space: https://huggingface.co/spaces/proofbird/try-grammar
• Files: https://huggingface.co/spaces/proofbird/try-grammar/tree/main

Try it

Open the Space in your browser, or copy it to your own Hugging Face account from its page. Nothing in this kit runs by itself.