PlugThis
TL;DR
PlugThis turns a plain-English description of a Chrome extension into a working, installable Manifest V3 extension in minutes — no coding required, and you own all the code.
Key Facts
Free version: No free trial — paid plans only
Pricing
Starting at $29 one-time (AppSumo LTD)
License Tier 1
- Full extension builder access
- Manifest V3 generation from prompts
- Own all generated code
- Chrome Web Store submission
License Tier 2
- Supabase full-stack backends
- LLM integration (OpenAI, Anthropic, Gemini)
- More extensions & credits
License Tier 3
- Highest extension & credits allowance
- Priority support
- Full feature parity
Additional Pricing Information
PlugThis runs a lifetime AppSumo deal: Tier 1 $29 (reg $129), Tier 2 $109 (reg $339), Tier 3 $229 (reg $649). Regular monthly pricing is $9.99/mo (Starter, 1 extension) and $29.99/mo (Builder, 3 extensions). 60-day refund window through AppSumo.
Details
What is PlugThis?
PlugThis is an AI-powered builder purpose-built for one thing: Chrome extensions. Instead of generic vibe-coding tools that output web-app code that breaks under Chrome's extension architecture, PlugThis understands the Manifest V3 platform directly. You describe the extension you want in plain English, and it generates the complete package — manifest.json, content scripts, background service worker, and popup UI — validates permissions and cross-file consistency, then loads the build into a real Chrome before you download it so you know it actually runs. It goes beyond simple popups: you can connect your own Supabase project for a real backend (auth, Postgres, edge functions) and bring your own OpenAI, Anthropic, or Gemini key to build LLM-powered features. You own 100% of the source code with no lock-in, and can download a ZIP, load it unpacked in Chrome, or submit it to the Chrome Web Store (with a built-in readiness check, auto-generated privacy policy, and promo slides). The AppSumo lifetime deal runs tiers from $29 to $229. The main trade-offs are that it's Chrome-only, requires your own API key for AI features, and caps extensions per plan. It's an excellent fit for non-coders who want a working Chrome extension fast, and for SaaS founders shipping companion extensions — as long as you stay within Chrome's ecosystem.
Key Features
- Plain-English Builder — Describe your extension and get full Manifest V3 source code in minutes
- Working Output — Every build is loaded into a real Chrome before download to confirm it runs
- Supabase Backend — Auto-generate auth, Postgres, and edge functions for extensions that need storage or login
- BYOK AI — Wire in your own OpenAI, Anthropic, or Gemini key for AI-powered extension features
- Iterate in Chat — Request changes with live preview updates and full version/diff history
- GitHub Sync — Push to GitHub with one click and restore any previous version
- Web Store Ready — Built-in readiness check, auto-generated privacy policy and terms, and promo slides
- Code Ownership — Download a ZIP and modify, sell, or publish the extension under your own name
- Templates — 14+ ready-to-use templates and idea starters to skip the blank prompt
Who is it for?
- Non-coders who want a working Chrome extension without learning JavaScript
- Founders shipping companion extensions for their SaaS product
- Indie developers prototyping browser tools (summarizers, scrapers, responders) fast
- Agencies delivering simple branded extensions for clients
- Anyone who wants to publish to the Chrome Web Store quickly
Who is it NOT for?
- Teams that need Firefox, Safari, or cross-browser packaging — it's Chrome only
- Users who don't want to manage their own AI API keys for AI features
- Those needing very complex extensions with deep custom logic (may need manual code)
- Anyone wanting a general-purpose app builder beyond Chrome extensions
The Bottom Line
PlugThis is a clever niche tool that nails one job: turning a plain-English idea into a real, installable Chrome extension with code you own. The $29 lifetime entry is a bargain for non-coders and SaaS founders shipping companion extensions — just know it's Chrome-only, needs your own AI key for heavy features, and is a bet on a young startup as a lifetime purchase.
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