Know who’s real.
Close with confidence.
Open a secure deal room, instantly capture and qualify buyer intent, gate access to key documents, and propel serious counterparties to signed agreements.
Enterprise-grade security · AES-256 · GDPR · CCPA
Free 7-day trial · No credit card required
500,000+ docs tracked
30,000+ professionals
Trusted in 175+ countries
See who’s serious. Move them to close
Sizle combines buyer qualification, secure access, agreements and signatures into one transaction-ready flow, so you know who is engaged, what they’ve seen and when a deal is ready to move.
Send and Track
Identify serious buyers. Share a gated link and see who has viewed, returned and engaged before you pick up the phone.
Reveal and Analyze
Know which sections of your documents hold attention and which lose it, real buyer behaviour, not guesswork.
Sign and Progress
When a buyer is ready, move them from access to signed agreement without leaving the room, in one controlled flow.
Everything needed to qualify buyers and
move a transaction forward
Sizle brings access control, buyer signals, agreements and signatures into one secure transaction flow.
Branded Smart Links
Professional links, every send
Share secure links with your own logo and domain to build trust from the first click.
Document Analytics
Know what buyers actually read
See which pages hold attention, where interest drops and who keeps coming back.
Instant eSignatures
Close deals faster, confidently
Collect legally binding eSignatures directly inside your documents, no switching tools.
Virtual Deal Rooms
A secure space for every deal
Create branded deal rooms with built-in analytics, permissions and access controls.
Lead Capture
Turn views into qualified pipeline
Capture enriched lead profiles automatically from every document view.
Smart Delivery
Enterprise security, zero friction
Send from your own domain with full branding and granular access controls.
Get started
for
free
Security that closes deals
From startups to enterprises, Sizle powers millions of secure document views across 175+ countries, designed to help teams move faster with confidence.
Trusted enterprise security for modern teams
AES-256 encryption, AWS hosting and full GDPR and CCPA compliance. Every document and workspace is protected, so teams can share materials with confidence.
Track views, clicks and signatures in real-time
See which leads are engaged, which pages hold attention and when interest is rising. Sizle turns every document into a live source of verified deal signals.
Trusted by professionals globally
Academic Research Sharing
Sizle is a great tool to share files we don't want copied or modified.
Client Proposal Sharing
The best part about Sizle is seeing who viewed a presentation, which slides they focused on and for how long before following up.
B2B Sales Proposals
The sales team were amazed they could see what slides clients were reviewing in real time.
Agency Proposal Tracking
Sizle surpassed our expectations when we saw how clients engaged with proposals.
Fundraising
Understanding when, where and how much recipients engage with our decks helps tremendously with follow-up.
SaaS Proposal Tracking
Sizle is incredibly easy to use, upload and send your document and you get detailed analytics on who viewed it.
Training Material Tracking
Being able to quickly and securely share a doc with full analytics has streamlined my full workflow.
Consultant Proposal Tracking
The insights are detailed and actionable. No more wondering if a client has opened an email.
Software Sales Proposals
Seeing how much time prospects spend on each slide helps us optimise our sales collateral.
k
Documents tracked
k
professionals
+
countries
FAQs
A secure online space where you share, track and sign deal documents with full visibility and control.
Sizle records every view, click and scroll in real time so you can see exactly how people interact with your documents.
Yes, you can fully brand your links and Deal Rooms with your logo, colours and domain for a professional experience.
Yes, you control who can view, download or sign, with full audit logs and access permissions.
Yes, every signature is legally binding under global eSignature laws and includes a Certificate of Completion.
Yes, invite teammates to shared workspaces to manage documents, track engagement and close deals together.
Stop guessing. Start knowing.
See exactly who's serious the moment they open your document, then close them without the back and forth.
Free 7-day trial · No card needed
Instant analytics
Trusted by 30,000+ professionals
