Stirling PDF vs Filewhisk

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Stirling PDF compared with Filewhisk
Detail	Stirling PDF	Filewhisk
What it does	A free, private PDF editor you can run on any infrastructure.	Free file tools that run in your browser with no upload, no file size limit, and no sign-up required
Stage	Not given	Startup
Founded	Not given	2026
Based in	US	Not given
Pricing model	Freemium	Free
Pricing	Free: $0/month includes 60+ PDF tools, web/desktop/self-hosted access, open-source editor, and 1,000 monthly credits. Team: $99/month for 100 users, includes everything in Free plus single sign-on, team workspace, and central control. Enterprise: Custom pricing for regulated and air-gapped deploymen	Not given
Key features	PDF reader with lightning-fast reading 60+ PDF editing tools OCR to read scanned pages Classification and tagging Signature validation PDF redaction Compression Routing to multiple destinations API for programmatic access Connectors for tool integration	Edit images including transparency, text, brightness, sharpening Convert data formats including CSV, Excel, JSON, XML All processing runs locally in browser with no uploads
What makes it different	Completely free editor forever with no per-seat licensing Run on any infrastructure with files staying yours Process thousands of PDFs with AI-powered automation Every action logged and recorded for compliance	Files never leave your device - no upload, no server storage, no file size limits No sign-up, no account, no premium plan or subscription Tools continue working offline after the page loads 171 tools covering images, PDFs, video, audio and data formats
Community votes	0	0
DR (Domain Rating by Ahrefs)	61 no change since last check	6 no change since last check
Trust Flow (Majestic)	15	4
Citation Flow (Majestic)	40	24
Referring domains (Majestic)	872	9

4 details filled in for both companies.

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