// PDF TOOLS

Letter Writer

Write and format professional letters. Download as PDF.

No upload
Works offline
No idea what's in your files

Need to write letters offline? The offline bundle creates letters without internet. $15 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Write
Add sender details, recipient, and your letter content.
02
Preview
See the formatted letter update live.
03
Download
Download a professional PDF letter ready to send or print.
// Why this is different

Your letter stays on your device.

fwip formats and generates your letter PDF entirely in your browser. Your correspondence never passes through a server.

fwip works differently. The PDF generation engine runs entirely in your browser. Your PDF is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

No server processing

Everything runs on your device using WebAssembly. Your file never touches a network.

No account required

Drop a file. Get a result. No sign-up, no email, no password.

No subscription

Free in the browser. $99 once for the offline bundle. That's it. Forever.

Works offline

The desktop version works with no internet connection at all.

Use it free in your browser. Own it offline for $15.
// How fwip compares

fwip vs the rest.

fwipGoogle DocsMicrosoft WordCanva
Upload requiredNoYes (cloud)No (desktop)Yes
Account requiredNoYesNoYes
Price$15 / toolFree$160/yrFree / $15/mo
Files leave deviceNeverYesNo (local)Yes
Works offlineYesPartialYesNo
Batch processingOffline bundleNoNoNo
// Questions

Frequently asked.

How do I write a letter as a PDF?▾
Fill in sender and recipient details, write your letter content, and download as a professionally formatted PDF.
Can I add a signature?▾
Yes. Upload an image of your signature and it's placed above your name in the closing.
Can I add a letterhead/logo?▾
Yes. Upload your logo and it appears at the top of the letter.
Is my letter uploaded?▾
No. Everything runs in your browser. Your letter content stays on your device.
What format is the letter?▾
Traditional business letter format on A4. Professional margins, proper date formatting, and clean typography.
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Like it? Own it.

Offline. No browser. No internet. No excuses.
$15
This tool
  • Letter Writer · offline
  • Batch processing
  • No file size limit
  • 3 devices · one payment
Join waitlist →
$49
PDF bundle
  • All 45 pdf tools · offline
  • Batch processing
  • No file size limit
  • 3 devices · one payment
Get PDF bundle →
$99
Complete suite
  • All 200+ tools · offline
  • No file size limit
  • No daily use limit
  • 3 devices · one payment · updates included
Join waitlist →
One-time payment · 3 devices · Updates included · Mac + Windows + Linux