Sign in to keep history, unlock Pro payments, and access your documents from any device.
Join writers who already write with more confidence
Secure payment. Cancel anytime. Powered by Paystack.
Get notified about new features and updates. Join 200+ writers already using Clearpen.
🎉 You're on the list!
Last updated: May 2026
Your documents are stored in your browser's local storage — they never leave your device unless you export them. If you sign in, we store your email and subscription status to enable Pro features across devices. Waitlist data is handled by Formspree.
Only the selected text is sent to our server and forwarded to Anthropic's Claude API. Text is processed in real-time and not stored by Clearpen.
We use Google Analytics 4, Microsoft Clarity, and Vercel Analytics. No personal information is tied to these analytics.
Email: louisnkan21@gmail.com
Clearpen — Louis IV Studio. Operated from Nigeria.
Last updated: May 2026
By using Clearpen, you agree to these terms.
Clearpen is an AI-assisted writing tool. The "Legal Phrasing" mode helps you write formally — it does not constitute legal advice. Always consult a qualified lawyer for serious legal matters.
5 free AI refinements per browser. Bypassing limits may restrict access.
₦5,000/month via Paystack. Cancel anytime. Refunds at our discretion within 7 days.
Clearpen is provided "as is." Always review AI output before sending important communications.
Clearpen — Louis IV Studio, Nigeria.
Used by students and professionals to write complaint letters, emails to lecturers, job applications, and business proposals that actually get responses. Edit and download as PDF — no app needed.
Join 200+ writers already using Clearpen across Nigeria and Africa
Dear Mr. Okafor,
I am so so sorry to bother you again but I was just wondering if maybe you could possibly find time to look at the broken pipe in unit 4B that has been leaking since March.
✦ Clearpen suggests: Reads as overly apologetic. Try → "I am following up on the unresolved plumbing issue"
Built for people who know what they want to say — but need help saying it the right way, at the right level, to the right person.
Highlight any sentence. Choose your intent. Clearpen rewrites just that selection. You approve or discard. Surgical, not sweeping.
Four meters update as you type — Formality, Assertiveness, Clarity, Warmth. See how your writing reads before you send it.
Start from a professionally structured document — emails, legal letters, essays, proposals. Pre-tuned for the right tone.
Save as PDF directly from your browser. A4, properly margined, submission-ready. No app download. No Adobe. Works on all devices.
Upload .txt, .docx, or .pdf files and refine the tone on your existing documents.
Full-screen distraction-free writing. Just you and the page. Exit anytime with one tap.
Last 10 snapshots. Restore any version, delete what you don't need. Never lose your work.
All tools accessible on mobile — AI refinement, templates, tone analysis — via the quick-access panel.
Grammarly checks spelling. Clearpen reads the room. One click changes how you sound — without changing what you mean.
Choose refinement mode:
Every template pre-structured and pre-tuned to the right tone for the situation.
For teams and organisations — contact us for custom pricing.
"I wrote an email to my HOD that came out sounding passive-aggressive without me realising. Clearpen gave me a rewrite that was firm but respectful. My HOD actually replied positively."
"As a freelancer, my proposals sounded uncertain. The 'More Assertive' mode rewrote my pitch intro. Won my next two proposals."
"I needed to write a formal complaint to my landlord but had no idea how to sound 'legal enough.' Clearpen's legal phrasing mode turned my frustrated rant into a proper notice letter."
No. Your documents are stored only in your browser's local storage — they never leave your device unless you export them. When you use AI Tone Refinement, only the selected text is sent for processing, and it is not stored by Clearpen.
Yes — that's one of the core reasons Clearpen exists. Tap Export → Print / Save as PDF. Your browser opens a print dialog. Select "Save as PDF" as the destination. Your document downloads as a properly formatted A4 PDF. No app, no Adobe, no account required.
Professional removes informal language and hedging. Assertive makes you sound confident without apology. Legal adds formal, official-sounding phrasing for notices and complaints. Calmer softens aggressive language. Simpler removes jargon. Academic brings scholarly register for essays.
You can still write, format, use templates, upload files, and export to PDF — all for free. The 5-use limit applies only to AI Tone Refinement. Upgrade to Pro (₦5,000/month) for unlimited refinements.
Yes. Clearpen is built mobile-first. It works on Android Chrome, iOS Safari, and all major mobile browsers. The editor, tone analysis, AI refinement, templates, and file upload all work on mobile through the floating buttons and bottom sheet panel.
Yes. Upload .txt, .docx (Word), and .pdf files directly into the editor. Your file is read locally in your browser — nothing is sent to a server during the upload process.
Clearpen uses Claude by Anthropic. Your API requests are processed securely through Clearpen's server and never expose your data beyond Anthropic's standard processing.
Pro is ₦5,000/month, paid securely via Paystack. You can pay with card, bank transfer, or USSD. Your account upgrades immediately after payment. Cancel anytime by emailing us.
No install. No credit card. Open the editor and write something real.
Start writing here, or choose a template from the panel →
Select text → choose mode → tap Refine
Select text in editor first, then choose mode and tap Refine.
Load any document into the editor. Your content stays private — nothing is sent to a server during upload.