Tweeks – AI Browser Extension Customization

TL;DR

TL;DR: Tweeks is a browser extension that generates Greasemonkey-style userscripts from plain-English prompts — no code required. Browse a community library of 200-plus tweaks or create your own in seconds.

Source and Accuracy Notes

⚠️ This section is MANDATORY. All links must be verified from actual source, not guessed.

• Project page: tweeks.io — verified
• Source repository: no public GitHub repo (closed-source, Next.js frontend) — verified via website and YC page
• License: proprietary (no open-source license found) — verified via website
• HN launch thread: news.ycombinator.com/item?id=45916525 — verified
• YC company page: ycombinator.com/companies/tweeksio — verified
• Source last checked: 2026-06-19

What Is Tweeks?

Tweeks is a browser extension built by NextByte (YC W25) that lets you customize how any website looks or behaves — without writing code. You describe the change you want in plain English (for example, “remove YouTube Shorts” or “add a dark mode toggle”), and Tweeks’ AI generates the underlying Greasemonkey-compatible userscript and installs it automatically.

The product has two sides:

• Community library — a searchable collection of user-submitted tweaks. Popular ones include “Remove Google Search Sponsored Results,” “YouTube - Remove Shorts,” “Amazon - Show Price History,” and “Remove AI Overview on Google Search.” Each tweak shows which sites it targets, download counts, and the author’s username.
• AI generation — describe what you want in natural language and Tweeks generates the modification. This requires a free account; browsing and installing community tweaks works without one.

Tweeks supports Chrome, Firefox, Edge, Brave, Opera, Vivaldi, Arc, and other Chromium-based browsers.

Setup Workflow

Step 1: Install the Extension

Install Tweeks from the Chrome Web Store or Firefox Add-ons:

• Chrome / Chromium browsers: Tweeks on Chrome Web Store
• Firefox: Tweeks on Firefox Add-ons

Step 2: Browse and Install a Community Tweak

1. Click the Tweeks icon in your browser toolbar.
2. Browse by site (YouTube, Google, Reddit, X, ChatGPT, etc.) or search for a specific modification.
3. Click any tweek to see its description and the sites it targets.
4. Select Install — the modification is applied immediately and persists across page reloads.

Example popular tweaks from the community library:

| Tweek | Sites | Downloads | |---|---|---| | Remove Google Search Sponsored Results | google.com | 8,988 | | YouTube - Remove Shorts | youtube.com | 8,392 | | Amazon - Show Price History | amazon.com | 7,870 | | Remove AI Overview & AI Mode Tab | google.com | 7,582 | | Chat Exporter (ChatGPT, Claude, Gemini) | chatgpt.com, claude.ai, gemini.google.com | 7,407 | | X.com - Quick “Not Interested” Button | x.com | 7,475 |

Step 3: Create Your Own Tweak

1. Click the Tweeks icon and select Create.
2. Navigate to the website you want to modify.
3. Describe the change in plain English (e.g., “hide the sidebar” or “add a shortcut to bookmark posts”).
4. Tweeks generates the userscript and applies it automatically.
5. Optionally publish your tweek to the public library.

Creating tweeks requires a free account. Free accounts include a base limit for creates and updates; paid plans raise those limits and add advanced features.

How Tweeks Works

Tweeks injects Greasemonkey-compatible userscripts into pages as you browse. These are the same .user.js scripts that power Tampermonkey and Greasemonkey — meaning existing userscript libraries are compatible out of the box.

From the official FAQ on the Tweeks website:

“Tweeks are designed to be lightweight and fast, and they only run on the websites where you enable them. Changes persist across page reloads and browser sessions.”

Each public tweek has viewable source code before you install it — you can inspect exactly what a tweek does to a page before giving it permission to run.

Security Model

Tweeks is SOC 2 compliant, per the official site. The security model has a few key layers:

• You choose which sites each tweek runs on.
• Every public tweek shows its source code before installation.
• You can disable or remove any tweek at any time.
• Tweeks does not passively capture page data — only when you actively submit a prompt to generate or update a tweek does the service use relevant page context.

Pricing

From the official FAQ:

“Yes. You can install Tweeks, browse and install public tweeks, and create your own modifications for free. Optional paid plans give you higher limits for creates, updates, and inference, plus access to advanced features like Tweeks MCP and using Tweeks with your ChatGPT subscription.”

Specific pricing tiers are not listed publicly — you need to sign up to see them.

Tweeks vs. Tampermonkey / Greasemonkey

Tweeks is compatible with Greasemonkey-style userscripts, so existing scripts can work out of the box. The key differences:

| Feature | Tweeks | Tampermonkey / Greasemonkey | |---|---|---| | AI script generation | Yes — plain English prompts | No — you write the code yourself | | Community library | Built-in, browsable in-extension | Manual sharing via forums/scripts sites | | One-click install | Yes | Varies by browser | | Plain-English creation | Yes | No | | Free tier | Yes (browse + install free; create requires account) | Free and open-source |

Supported Sites

The community library lists tweaks for 30-plus sites including YouTube, Google (Search, Gemini), X/Twitter, Reddit, ChatGPT, Claude, Gemini, Amazon, LinkedIn, GitHub, Gmail, Spotify, Discord, Notion, and more.

Practical Evaluation Checklist

• Install the extension on Chrome or Firefox
• Browse the library at tweeks.io and install a tweek on a site you use daily
• Try creating a tweek for a small personalization (e.g., hide a specific element on a news site)
• Inspect the generated userscript source code before publishing
• Check how the tweek behaves after a browser restart

FAQ

Q: Do I need to know how to code? A: No. Tweeks is designed so you can customize websites without writing code. You describe what you want in plain English and Tweeks generates the script. You can also install community tweaks with one click.

Q: Which browsers does Tweeks support? A: Tweeks supports Chrome, Edge, Brave, Opera, Vivaldi, Arc, Comet, and other Chromium browsers, as well as Firefox.

Q: Is Tweeks free? A: Yes — browsing and installing public tweeks is free. Creating your own tweeks with AI generation requires a free account. Paid plans offer higher creation limits and advanced features.

Q: Is Tweeks safe to use? A: Tweeks is SOC 2 compliant. Every public tweek shows its source code before installation, you control which sites each tweek runs on, and you can disable or remove any tweek at any time. Tweeks does not passively capture your page data.

Q: Can Tweeks see my private data? A: Tweeks does not passively capture page data. If you actively submit a prompt to generate or update a tweek, Tweeks may use relevant page content to assist with that generation.

Q: How is Tweeks different from Tampermonkey? A: Tweeks is compatible with Greasemonkey-style userscripts but adds AI-powered creation — you describe what you want in plain English instead of writing code. It also includes a built-in community library with one-click install.

Q: Does Tweeks work on mobile? A: The extension targets desktop browsers (Chrome, Firefox, and Chromium-based browsers). Mobile browser support is not documented on the official site.

Conclusion

Tweeks solves the “I wish this website did X” problem without requiring any coding knowledge. The combination of a browsable community library (200-plus tweaks, many with thousands of downloads) and AI-powered script generation makes it uniquely accessible — you can improve your browsing experience in under a minute. The SOC 2 compliance and viewable source code model also make it more transparent than typical extension-store add-ons.

If you have used Tweeks or want to compare it against similar tools like Tampermonkey, Hyperbrowser, or browser-use.com, the comments on the HN launch thread are worth reading.