FairSign
Self-sign PDFs free in your browser — your file is never uploaded. Send documents for signature with an audit trail: 3 sends/month free, Pro $12/month unlimited. Cancel for $0, 14-day refund, 7-day renewal reminder.
A startup from Vietnam.
Self-sign PDFs free in your browser — your file is never uploaded. Send documents for signature with an audit trail: 3 sends/month free, Pro $12/month unlimited. Cancel for $0, 14-day refund, 7-day renewal reminder.
A startup from Vietnam.
This page is designed to help you find out whether FairSign is good and if it is the right choice for you.
FairSign is an independent e-signature service with two clearly labeled modes. Self-signing runs locally in the browser and works offline; no request carries the PDF. Send mode uploads the document to create a recipient link and a tamper-evident audit trail. The Free plan includes 3 sends per month and unlimited self-signing. Pro is $12 per month for unlimited sends, with a regional price of $6 for Southeast Asia and Latin America. Recipients do not need an account, and the signing flow supports 17 languages.
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Private self-signing
PDF stays in your browser; no file upload in self-sign mode
Signature requests
3 sends/month free; unlimited on Pro; recipients need no account
Tamper-evident audit trail
Completed send-mode PDFs include signing history and tamper evidence
Choose FairSign if you value a clear privacy boundary and predictable billing more than enterprise feature breadth. Self-signing is processed in your browser without uploading the PDF. Send mode is clearly labeled, recipients do not need an account, the Free plan includes 3 sends per month, and Pro is $12/month for unlimited sends.
FairSign also charges $0 to cancel, offers a 14-day refund, and sends a renewal reminder 7 days in advance. It is not the right choice today if you need ordered signing, a mobile app, SOC 2, or enterprise integrations.
FairSign is primarily for freelancers, consultants, founders, and small teams that handle straightforward contracts, agreements, and approvals. It is especially useful for people who often sign their own PDFs and want that workflow to stay in the browser, or who need to send documents without paying per envelope.
It is a good fit when transparent billing, a simple recipient experience, and a tamper-evident audit trail matter more than enterprise features. Teams that require ordered signing, a mobile app, SOC 2, or deep enterprise integrations should use a more mature enterprise platform for now.
FairSign started from two frustrations with mainstream e-signature tools. First, putting your own signature on your own PDF often requires uploading the file even though nobody else needs to see it. Second, simple signing tools are frequently paired with envelope limits, cancellation fees, unclear renewals, or expensive upgrades.
We built FairSign around two explicit modes instead: self-signing stays in the browser, while send mode clearly explains that the document is uploaded to create a recipient link and audit trail. The product is run by a small independent team, with transparent plans, $0 cancellation, a 14-day refund, and renewal reminders sent 7 days in advance.
FairSign is built with Next.js 16, React 19, TypeScript, and Tailwind CSS. Supabase provides authentication, database, and storage services, while Paddle Billing handles subscriptions and checkout.
The PDF workflow uses pdf-lib and PDF.js for document processing, plus the @signpdf libraries and node-forge for cryptographic PDF sealing. The production application is deployed on Vercel, with Sentry and PostHog used for monitoring and product analytics.
FairSign separates two workflows that most e-signature tools blur together. When you sign your own PDF, the file is processed entirely in your browser and can work offline, so the PDF is not uploaded. When you send a document to someone else, FairSign clearly explains that the file is uploaded to create a recipient link and a tamper-evident audit trail.
Billing is deliberately transparent: self-signing is free, the Free plan includes 3 sends per month with no card, and Pro is $12/month for unlimited sends. Cancellation costs $0, refunds are available for 14 days, and FairSign emails a reminder 7 days before renewal.
We have collected here some useful links to help you find out if FairSign is good.
Check the traffic stats of FairSign on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of FairSign on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of FairSign's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of FairSign on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about FairSign on Reddit. This can help you find out how popualr the product is and what people think about it.
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Is FairSign good? This is an informative page that will help you find out. Moreover, you can review and discuss FairSign here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.
