OtterPDF
Fill, sign, edit and redact PDFs in Chrome without uploading your documents.
- Fill and save PDF forms locally
- Sign, redact, edit text and mark up PDFs
- No uploads, no account, works offline
Browser extensions · by EspinalLab
Smart Chrome extensions. Built with care.
OtterExtensions is our home for practical, privacy-minded Chrome extensions. Each one solves a single everyday problem, works without an account and keeps your data in your browser.
- Chrome
- Free, with one-time Pro upgrades
- 5
- Extensions and growing
- 0
- Accounts or sign-ups needed
- Local
- Your data stays in your browser
- One-time
- Pro upgrades, no subscriptions
Features
What every extension has in common.
- 01
Safe and private
Lightweight extensions built with careful browser practices. No ads, no tracking, and your files and data stay on your device.
- 02
Simple and useful
Each extension solves one real workflow problem with a clean, obvious interface.
- 03
Pay once, if ever
Every extension has a free plan. Pro is a single payment, never a subscription.
The collection
Meet the family.
OtterJSON
NewFormat, search and explore JSON privately in Chrome.
- Private, on-device JSON formatting
- Exact big numbers and duplicate key warnings
- A fast tree view with search and dark mode
OtterRefresh
Auto refresh any tab and get alerted when the page changes.
- Per-tab timers that pause while you type
- Page monitoring with desktop alerts
- Pro schedules and auto-start rules
OtterPage
Capture entire webpages, mark them up, redact details and export polished screenshots.
- Full-page, viewport, element and region capture
- Annotation and redaction tools
- PNG, JPG, PDF, clipboard and ZIP export
Real Estate Image Downloader
Save full-resolution listing photos from Zillow, Redfin, Realtor.com and Trulia.
- Full-resolution photo downloads
- Bulk ZIP downloads for whole listings
- CSV export for image and video details
