Best Free E-Signature Software in February 2026
Finding a reliable way to sign PDF documents without breaking the bank can be a challenge. With giants like DocuSign tightening their free tier limits, freelancers and small businesses are actively searching for the best free e-signature software in February 2026.
We’ve tested appropriate tools to help you send unlimited documents for free, ensure legally binding digital signatures, and work compliant with UETA and ESIGN acts.
Here is our curated list of the top contenders, starting with our #1 pick for a truly free, unlimited experience.
🥇 1. Inkless — The Best Overall
When it comes to value, Inkless stands alone as the truly free alternative. While other "free" plans restrict you to 3-5 documents a month, Inkless lets you sign documents online without limits.
Why Inkless Wins
Inkless is designed for simplicity and speed. It removes the friction of paywalls and account upgrades, making it the best free e-signature software for anyone needing a secure document signing solution.
Key Features
- Unlimited Free E-Signatures: Send as many envelopes as you need. There are no "3 sends/month" caps.
- Top-Tier Security: Your documents are protected with high-end encryption.
- Legal Compliance: Provides legally binding electronic signatures that are compliant with UETA and ESIGN acts.
- User-Friendly Interface: Just upload a PDF and use the drag and drop signature fields to place your inputs.
- No Hidden Costs: No credit card required to start.
If you want to sign PDF online free and need a tool that offers real-time audit trails and tracking, Inkless is the unparalleled choice. It is simply the easiest way to get your contracts signed securely and quickly.
Start signing with Inkless for free
2. BoldSign
BoldSign provides an e-signature platform that focuses on high-volume document processing for small to mid-sized businesses.
Core Offering
The free tier allows for 25 document requests per month for a single user.
Key Features
Includes an audit trail for legal compliance, a mobile-responsive signing interface, and support for basic custom branding. It also offers SMS and email-based authentication for signers.
Technical Details
The platform is compliant with U.S. (ESIGN) and international (eIDAS) standards and offers an API for developers to integrate signing workflows into existing applications.
3. PandaDoc
PandaDoc is a document automation platform that combines e-signatures with a native document editor.
Core Offering
Their free plan allows for the sending of up to 5 documents per month with no limit on document uploads for self-signing.
Key Features
Features a drag-and-drop editor for building contracts from scratch, real-time document tracking, and a built-in payment gateway for collecting credit card or ACH payments upon signature.
Technical Details
Provides a certificate of authenticity with every completed document and offers a mobile app for managing documents on the go.
4. SignWell
SignWell (formerly Docsketch) is a streamlined e-signature tool designed for simplicity and ease of use.
Core Offering
The free plan permits 1 sender to process up to 3 documents per month.
Key Features
Includes one reusable template for frequent contracts, automated reminders, and status notifications. It provides a standard audit report with timestamps and IP addresses.
Technical Details
Focused on a "clean" interface to minimize the learning curve for signers and integrates with over 5,000 apps via Zapier.
5. OpenSign
OpenSign is an open-source electronic signature solution built for users who prioritize transparency and data sovereignty.
Core Offering
Offers a "free forever" plan that provides unlimited signatures and document storage for those who use their cloud or self-hosted versions.
Key Features
Includes PDF annotation, multi-signer support, and "OpenSign Drive" for document organization. It supports advanced widgets like checkboxes, radio buttons, and initials.
Technical Details
As an open-source tool, the source code is public. It allows for full control over data hosting and offers API support for custom enterprise integrations.
Verdict: Which is the Best Free E-Signature Software?
If you are a developer or enterprise needing an on-premise solution, OpenSign might be your speed.
However, for the vast majority of users who simply want to e-sign PDF documents quickly and securely, Inkless is the clear winner for 2026.
- Unlimited Sends: Unmatched by competitors.
- Zero Cost: A free contract signing tool that stays free.
- Secure & Valid: Offers secure and legally valid signatures.
Don't let arbitrary limits slow down your business. Choose the online signature maker that grows with you.
👉 Get Unlimited Free Signatures at useinkless.com