What is a unilateral NDA?
A unilateral NDA — also called a one-way NDA — is the most common type of non-disclosure agreement. One party (the "Disclosing Party") shares confidential information, and the other party (the "Receiving Party") agrees to protect it. The obligation flows in one direction only.
Think of it as a one-way street. Company A shares its trade secrets with Contractor B. Contractor B agrees not to disclose those secrets. Contractor B doesn't share any confidential information in return — so only Company A's information is protected.
When to use a unilateral NDA
- Hiring employees — new hires will access your proprietary information, but you typically don't access theirs
- Working with contractors — freelancers and agencies who see your code, designs, or client data
- Pitching to investors — you share your business plan, they don't share theirs
- Sharing with vendors — suppliers or service providers who need access to your systems or data
- Product beta testers — testers who see unreleased features before public launch
What is a mutual NDA?
A mutual NDA — also called a bilateral or two-way NDA — protects both parties. Both sides share confidential information and both agree to keep each other's information secret. The obligation flows in both directions.
Think of it as a two-way street. Company A and Company B are exploring a merger. Both share financial data, client lists, and product roadmaps. Both agree to protect each other's information equally.
When to use a mutual NDA
- Business partnerships — both companies share strategies, client lists, or technology
- Joint ventures — co-developing a product or service where both sides contribute proprietary knowledge
- Merger and acquisition discussions — both companies perform due diligence and share financials
- Technology integrations — two companies sharing APIs, source code, or technical specifications
- Co-marketing agreements — sharing customer data, marketing strategies, or campaign results
- Licensing negotiations — licensor and licensee both share proprietary details during deal structuring
Key differences at a glance
Here's how the two types compare:
- Direction of protection — Unilateral protects one party. Mutual protects both.
- Who can share information — In a unilateral NDA, only the disclosing party shares. In a mutual NDA, both parties share.
- Complexity — Mutual NDAs are slightly more complex because they define obligations for both sides.
- Negotiation — Mutual NDAs are generally easier to negotiate because both parties have equal obligations. Unilateral NDAs can feel one-sided, making the receiving party more resistant.
- Cost — No significant difference. Both are straightforward documents.
Real-world examples
Unilateral NDA example: Hiring a freelance developer
You're hiring a freelance developer to build a feature for your SaaS product. The developer will see your source code, database structure, and product roadmap. You don't need to see any of their proprietary information. A unilateral NDA protects your information — the developer agrees not to share your code, architecture, or business plans with anyone.
Mutual NDA example: Exploring a partnership
Two SaaS companies are exploring an integration partnership. Company A will share its API documentation and user analytics. Company B will share its data pipeline architecture and client list. Both parties need protection, so they sign a mutual NDA before sharing any technical details. If the partnership doesn't work out, neither company can use or disclose what they learned.
Mutual NDA example: Merger discussions
A startup is in acquisition talks with a larger company. The startup shares its revenue numbers, growth metrics, and product roadmap. The acquiring company shares its valuation methodology, integration plans, and internal financial targets. Both sides use a mutual NDA because both are sharing information that would be damaging if leaked.
Which type should you choose?
Ask yourself one question: is information flowing in one direction or both?
- If only you are sharing sensitive information → unilateral NDA
- If both parties are sharing sensitive information → mutual NDA
When in doubt, go with a mutual NDA. It's fairer, easier to negotiate, and protects everyone. The other party is more likely to sign quickly because they're getting protection too. A one-sided NDA can signal distrust and create friction before a relationship even starts.
Template recommendations
PDFMakerAPI offers free templates for both types. Each template includes all the essential clauses — party identification, definition of confidential information, obligations, exclusions, duration, and remedies. Customize with your specific details and download as PDF.
- Mutual NDA template — for partnerships, joint ventures, and two-way information sharing
- Unilateral NDA template — for employees, contractors, and one-way information sharing
For a full walkthrough of every clause, see our guide to creating an NDA.