New in v0.5.8:
Use multiple system prompts
Distraction-free Grammarly alternative
Improve your writing, fix grammar mistakes, translate, and more. It works wherever you write on Chrome.
Works on
& more
Everything you need in one extension
Powerful AI writing tools that work wherever you write, with complete privacy.
Voice to text
On-device transcription. Free and private.
Private transcription
Chat mode
Brainstorm ideas and ask questions.
Interactive AI
Works everywhere
Any website, any text field.
Universal
Bring your own keys
Use latest models without subscription fees.
No monthly fees
Free unlimited writing
Powered by Gemini Nano. Works offline, completely private.
On-device AI
Write confidantly with our Chrome extenshun!
Wandpen
Why I built Wandpen
I used to use ChatGPT a lot to fix my emails and articles.
I would copy my writing and paste it into ChatGPT and ask it to improve it, rewrite it, or fix grammar errors and so.It worked.
But I am constantly changing tabs and disturbing my workflow.
I wanted something that does this natively where I write just like Grammarly but without constant red squiggly lines and popups.
So I built Wandpen. A tool that combines the power of ChatGPT & Grammarly directly into wherever I'm writing.
I loved building it. I loved using it.
I hope you enjoy using it as well.
Cheers,
Nithur M
Maker of Wandpen
ALWAYS FREE
Free
$0
Forever
- Unlimited writing with Gemini Nano
- 100 generations/month with Gemini 2.5 Flash Lite
- Unlimited transcription (voice to text)
- No signup needed for local features
Perfect for most users: Get started with unlimited local AI writing and transcription, plus 100 cloud generations per month.
Simple Pricing, Great Writing
Choose the plan that works best for you. Get started for free and only upgrade if you need unlimited access to cloud AI models.
Pro
For writers and creators who want speed, context, and intelligence — unlimited.
$
10
/mo
$8.3/mo annually (save 20%)
- Unlimited writing
- Intelligent models
- Larger context
- Available models:
gpt-5
gpt-5-mini
gpt-5-nano
gpt-4o-mini
claude-4.5-sonnet
claude-3.7-sonnet
gemini-2.5-pro
LIFETIME ACCESS
BYOK
Perfect for developers, AI tinkerers, and power users who can manage API keys.
$
19
$
49
One-time payment • Early Bird Offer
- Use your own API keys
- Unlimited generations
- No monthly fees
- OpenAI, Anthropic, Google, Straico, and OpenRouter APIs
- Lifetime access
FAQs
Wandpen is a Chrome extension that appears when you select text you've written. From there, it allows you to perform various actions, such as improving your writing and correcting grammar errors. You also have the ability to refine responses.