Building the Standard for Interactive Proof Pitches
Proofline was founded to solve a fundamental problem in digital client acquisitions: static proposal PDFs create friction, obscure real value, and force clients to guess whether a freelancer can actually deliver.
Our Founder's Vision
Having spent over a decade designing web architecture for high-growth tech startups and digital agencies, Alex Rivera built Proofline to eliminate proposal drop-off.
By combining interactive before/after image sliders, live sandboxed code embeds, and scope budget calculators, Proofline transforms cold proposals into engaging proof-of-work experiences.
Our Core Operating Principles
100% Data Isolation
Every account operates inside its own isolated storage boundary. Your proposals, clients, and payment records remain strictly private.
0% Transaction Fees
We believe freelancers should keep 100% of their earnings. Deposits are sent directly to your payment accounts without middleman deductions.
Transparent Telemetry
Know exact client interest levels before sending follow-ups. Telemetry logs record which proof modules clients inspect.