Dev tools · alternatives · 2026
24 alternatives to lsf
OpenGrammar is a free, privacy-first browser extension that gives you Grammarly-like writing help everywhere (Gmail, Google Docs, Notion, Reddit, etc.) without sending your data anywhere. Key points: • Core engine runs 100% locally in your browser (rule-based detection of passive voice, repetition, long sentences, readability). No internet needed. • Optional AI power: just paste your own OpenAI/Groq/OpenRouter/Ollama key. You pay only pennies for what you use. Your key never leaves the browser. • Tone rewriting (Formal, Casual, Professional, etc.) with one right-click. •…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Lumos is an LLM co-pilot for browsing the web, powered by local LLMs (Ollama). - Summarize long threads on issue tracking sites, forums, and social media sites - Summarize news articles - Ask questions about reviews on business and product pages - Ask questions about long, technical documentation - What else?
2024 · github.com · its alternatives →
- 2
Hey HN, I’ve built Open Codex, a fully local, open-source alternative to OpenAI’s Codex CLI. My initial plan was to fork their project and extend it. I even started doing that. But it turned out their code has several leaky abstractions, which made it hard to override core behavior cleanly. Shortly after, OpenAI introduced breaking changes. Maintaining my customizations on top became increasingly difficult. So I rewrote the whole thing from scratch using Python. My version is designed to support local LLMs. Right now, it only works with phi-4-mini (GGUF) via…
2025 · github.com · its alternatives →
- 3
Hey HN, I made Browser-Use, an open-source tool that lets (all Langchain supported) LLMs execute tasks directly in the browser just with function calling. It allows you to build agents that interact with web elements using natural language prompts. We created a layer that simplifies website interaction for LLMs by extracting xPaths and interactive elements like buttons and input fields (and other fancy things). This enables you to design custom web automation and scraping functions without manual inspection through DevTools. Hasn't this been done a lot of times? Good question, as a general…
2024 · github.com · its alternatives →
- 4
BrowserBash▲101CLI that turns plain-English into real browser tests
Jun 2026 · browserbash.com · its alternatives →
- 5
BetterWrite▲134So this weekend I and a friend of mine (@ronitrajfr) created a minimalist writing editor. It's ui is clean, beautiful and distraction free, it also has a vim mode and everything stays on your computer no authentication is required to write your thoughts and all we wanted an application where we just start typing with no BS and that's what we made. and did I tell ya that it's open source as well lmk your thoughts and feedback!!
Dec 2025 · betterwrite.ronitt.xyz · its alternatives →
- 6
Hi Hacker News, I developed an open source browser extension for summarizing Hacker News articles with OpenAI and Anthropic LLMs. It currently supports Chrome [1] and Firefox [2] (desktop). The extension adds the summarize buttons to the HN front page and article pages. It is bring-your-own-key, i.e. there's no back end behind it and the usage is free, you insert your API key and pay only for tokens to your LLM provider. [1] https://chromewebstore.google.com/detail/hacker-news-tldr/oo... [2]…
2024 · github.com · its alternatives →
- 7
Open Interpreter▲182Control your computer with natural language
2023 · openinterpreter.com · its alternatives →
- 8
Hi everyone, we’re a small team, supported by Mozilla, who are working on re-imagining a UI for training, tuning and testing local LLMs. Everything is open source. If you’ve been training your own LLMs or have always wanted to, we’d love for you to play with the tool and give feedback on what the future development experience for LLM engineering could look like.
2025 · github.com · its alternatives →
- 9
Check out this impressive project that enables running LLMs entirely in the browser using WebGPU. Key features: - Zero token costs, no cloud infrastructure required - Complete data privacy through local processing - Simple 3-line code integration - Built on MLC and Transformer.js The benchmarks show smaller models can effectively handle many common tasks. Currently the project roadmap includes: - No-code AI pipeline builder - Browser-based RAG for document chat - Analytics/logging - Model fine-tuning interface
2025 · github.com · its alternatives →
- 10
- 11
Hello! I built this to solve a personal problem of where I didn't want to wade down large chains of HackerNews comment threads in order to get the key takeaways from the discussions. I built this Chrome extension, which supports both OpenAI and Ollama(local LLMs) to summarize comments and display the summary within Chrome's sidepanel. It's open source as you can see from the link, feedback appreciated!
2024 · github.com · its alternatives →
- 12
OpenBrief is basically a GUI for yt-dlp with some AI on top — paste a link, it downloads locally, and transcription and voice generation run with local AI on your machine. Summaries and chat over the transcript use an LLM, which is bring-your-own-key for now. It's open source and free.
May 2026 · github.com · its alternatives →
- 13MG
Hello HN, I've been working on this project for a while, and it has been in an "open" beta for some time. I finally believe it's ready for its first release. I hope you like it. Here are some potential questions that may arise: 1. How does it compare to LM Studio? It's likely that if you're already using LM Studio, you'll continue to do so. This project is designed to be more user-friendly. 2. Is it open-source? No, it is not. 3. Does it use any open-source libraries? Yes, it uses llama.cpp and a few others, as indicated in the license information included with the application. 4. Why is not…
2023 · avapls.com · its alternatives →
- 14
Hi HackerNews, Lately, I have seen an explosion in posts offering paid APIs/services to get unstructured data into LLMs (i.e. langchain extract, ragflow, unstructured, unstract, just to name a few) and I have been largely disappointed by them, either because they fail to implement multimodal support, fail to give good context for "really tricky" PDFs / Word docs / Powerpoints, or are just plain difficult to use. In light of all these posts I figured I'd share my solution that has been working smoothly for me and my clients. I put it up on GitHub for free so you can check it…
2024 · github.com · its alternatives →
- 15DA
I created this to fill a need, accessing those silly LLMs from the menu bar instead of a web browser or command line. It relies 100% on Ollama, but gives you an easy way to make queries against multiple models, and provides a few sample modelfiles for you. open source, of course. https://github.com/JerrySievert/Dumbar to skip the blog post and go straight to the code and release.
2023 · jerrysv.xyz · its alternatives →
- 16
Hey HN, we're super excited to share something we've been working on: OpenLIT. After an engaging preview that some of you might recall, we are now proudly announcing our first stable release! *What's OpenLIT?* Simply put, OpenLIT is an open-source tool designed to make monitoring your Large Language Model (LLM) applications straightforward. It’s built on OpenTelemetry, aiming to reduce the complexities that come with observing the behavior and usage of your LLM stack. *Beyond Basic Text Generation:* OpenLIT isn’t restricted to just text and chatbot outputs. It now includes automatic…
2024 · github.com · its alternatives →
- 17
Code▲20Hey HN, Today we're launching Code, a community-driven, open-source coding agent for your terminal. It's a fork of OpenAI's codex with a focus on developer ergonomics and local control. Key features: - Browser integration – attach to your Chrome via CDP or use a built-in headless browser. You can browse pages, run the CLI in a browser session, and even take screenshots from the terminal. - Multi-agent commands – /plan, /solve and /code orchestrate multiple models (ChatGPT, Claude, Gemini) to propose and implement solutions, with consensus or race options. - Diff viewer – see…
2025 · github.com · its alternatives →
- 18
Hi all, I threw together a small prototype I am calling “Notepad.ai”. A new take on UIs for interacting with LLMs. While I enjoy using LLM’s in the chat format I wanted to see what it would be like to do it in a more long form style. It let’s you write in a pretty free form, much like Window’s Notepad, but you can choose to hit ctrl+[ to analyze the text with a preset prompt of your choosing. It has a few other small features. It’s WIP and very experimental. I would appreciate any feedback or thoughts. Video: https://youtu.be/ntdlgFmSxQY Live Demo:…
2024 · github.com · its alternatives →
- 19
Hey HN, I wanted a grammar checker that didn’t send my writing to someone's servers, so we built Grammit, a Chrome extension that runs grammar checks locally using an LLM. Your text never leaves your computer during checking. Here’s a 2-minute overview: https://www.loom.com/share/baf501ee6cf14a919a7384128246ed67 Because it uses an LLM, it catches more than spelling and grammar. For example, it can correct some wrong statements like “The first US president was Benjamin Franklin.” Grammit also includes an in-page writing assistant that can rephrase or draft new text. It…
2025 · chromewebstore.google.com · its alternatives →
- 20
As a high school student, I love LLMs and the execution of Apple's Appel Intelligence Writing Tools, but was disappointed that nothing like that existed for Windows. So, I created Writing Tools, a better than Apple Intelligence open-source alternative that works system-wide on Windows! Key features: - Uses Google's Gemini 1.5 Flash model for superior AI-assisted writing (much better than the tiny 2B parameter Apple Intelligence model) - Works in any application with a customizable hotkey - Proofreads, rewrites, summarizes, and more - Free and privacy-focused (your API key stays local, no…
2024 · github.com · its alternatives →
- 21
Textpilot▲16I built this tool simply because I need it for myself. I'm not a native English speaker, and every time I write something, I like to double-check if the grammar is good Key features: - Fix grammar and clarity with one click - Rephrase, shorten, or expand text instantly - Generate content from scratch - Translate to multiple languages - Works on any website (no copy-pasting needed) It's built with Next.js and Plasmo. I wanted something lightweight that stays out of the way until you need it. I'd love to hear your feedback!
Jan 2026 · text-pilot.com · its alternatives →
- 22
Hey HN! We've run our privacy-focused open-source inference company for a while now, and we're launching a flat monthly subscription similar to Anthropic's. It should work with Cline, Roo, KiloCode, Aider, etc — any OpenAI-compatible API client should do. The rate limits at every tier are higher than the Claude rate limits, so even if you prefer using Claude it can be a helpful backup for when you're rate limited, for a pretty low price. Let me know if you have any feedback!
2025 · synthetic.new · its alternatives →
- 23
One coding agent orchestrator UI for Claude and Codex, but actually feels nice. Free, open-source, MIT licensed. Why I built it: - I wanted a lightweight UI as nice as the Codex app, but without the complexity and the custom diffs on the side - I want files and diffs open straight in my editor! - And I wanted both agents - Anthropic + OpenAI — in one place How it works: - No API keys, no OAuth, no separate billing — it just uses whatever you're already logged into. So your Claude Max and ChatGPT/Codex subscriptions both work out of the box. - Talks to Claude Code via the Claude Agent…
Apr 2026 · github.com · its alternatives →
- 24
I posted this previously, but there's been a major update. As a high school student, I love LLMs and the execution of Apple's Appel Intelligence Writing Tools, but was disappointed that nothing like that existed for Windows. I thus created Writing Tools, a better than Apple Intelligence open-source alternative that works system-wide on Windows. It's much better than the tiny 2B parameter Apple Intelligence model! Features (works system-wide): 1. Select text in a textbox, press the hotkey, and optimise your text in a click (proofread, rewrite, tone changes, custom instructions...). You can…
2024 · github.com · its alternatives →
Also compare
- Lumos, a local LLM Chrome extension alternatives
- Open Codex – OpenAI Codex CLI with open-source LLMs alternatives
- I wrote an open-source browser alternative for Computer Use for any LLM alternatives
- BrowserBash alternatives
- BetterWrite alternatives
- Bring-your-own-key browser extension for summarizing HN posts with LLMs alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →