Full page screenshot
Complete visual capture of the entire webpage
Capture the Web as
Evidence.
Trustworthy. Irrefutable.
ProofSnap captures the entire webpage as legal-grade evidence, including a full-page screenshot, all visible and hidden text, and technical metadata. Every capture is bundled with cryptographic hashes, a digital signature, and a blockchain timestamp, ensuring the evidence is tamper-evident and verifiable. The package includes the screenshot, HTML, extracted text, metadata, and a manifest listing all files and their hashes. ProofSnap also records session data such as cookies and storage, and refreshes the page before capture to guarantee authenticity. This process creates a forensically sound archive suitable for court, audits, or investigations.
Social & Business Forensics: ProofSnap is optimized for dynamic platforms where content changes in real time. It allows you to "freeze" and verify conversations, posts, and profiles on LinkedIn, WhatsApp Web, Messenger, Slack, X (Twitter), Discord, Reddit and Telegram. Flexible Capture Options: Collect evidence exactly as needed—choose "Capture visible area only" for a quick snapshot of a specific detail, or "Full chat capture" to document an entire conversation history into a single, verified file. By preserving these volatile interactions as "proof of authenticity," you ensure that key agreements, offers, or profiles cannot be modified or deleted without a permanent and unquestionable record.
AI Audit & Accountability: Fighting Hallucinations and Deepfakes. In an era where AI-generated content is becoming the norm, ProofSnap serves as a critical checkpoint for AI auditing. Capture AI Hallucinations: If a chatbot (ChatGPT, Gemini, Claude, or a corporate assistant) provides legally binding but incorrect information or promises, ProofSnap immediately "freezes" this output along with its metadata—crucial for resolving liability disputes. Protection Against Manipulation: ProofSnap provides a cryptographic certificate of authenticity, proving content originated from a specific URL at a specific time and was not modified by generative tools. Audit Trail for Compliance: Companies can document AI-user interactions, ensuring compliance with future regulations like the EU AI Act.
In simple terms: ProofSnap turns any webpage screenshot into trusted proof. It saves the image, the page’s text, and background details, then locks everything with a digital seal and blockchain timestamp. Your screenshot becomes evidence you can use in legal or compliance situations, with a certificate showing it hasn’t been altered.
Primary Use Cases
- Investigations & Forensics: Preserve disappearing content, manipulated posts, disinformation, or online fraud evidence before it vanishes.
- Legal & Litigation: Capture evidence for court—contract breaches, defamatory content, policy changes, fraudulent offers, or terms and conditions.
- Compliance & Audit: Archive regulatory documents, pricing agreements, internal portal states, or onboarding steps for audit trails.
- B2B & Client Disputes: Document exactly what a client saw (pricing, service configs, offers) to resolve communication disputes.
- HR & Talent Acquisition : Verify candidate profiles, LinkedIn posts & profile verification, post validation and prevent profile falsification.
What ProofSnap Captures
Metadata
Timestamp, URL, user agent, and technical details
Hash & digital signature
Cryptographic proof of authenticity
Export options
Download as ZIP with all evidence files
See ProofSnap in Action
Watch how ProofSnap captures legally admissible web evidence with blockchain timestamping in just 41 seconds.
0:41
Learn how ProofSnap creates court-admissible digital evidence in 41 seconds
Click to watch on YouTube
Who Uses ProofSnap and Why
Lawyers, Auditors & Compliance
Document evidence for legal proceedings and regulatory compliance
- Timestamped snapshots for dispute resolution
- Audit-ready exports for regulatory filings
- Cryptographic hash for integrity
- Contract, Employment disputes
"Screenshots aren't enough in court. ProofSnap gives us the structure, timestamp, and traceability we need."
Journalists & Digital Investigators
Preserve online evidence for investigative reporting and OSINT research
- Capture controversial posts or deleted pages
- Export as PDF or ZIP for transparency
- Embed source URL, timestamp, browser context
- Digital forensics, website changes, online harassment
"ProofSnap lets us document the truth before it's edited, censored, or erased."
Freelancers & Developers
Archive web content for academic and technical research
- Save snapshots of staging or live releases
- Include DOM for frontend debugging
- Share ZIPs with clients or QA
- Timestamped proof for verification
- Web archiving, version control, data collection
"It's like Git for the browser — I can prove exactly what the site looked like when I shipped it."
SEO Managers
Track and document SEO changes with timestamped web page snapshots
- Save snapshots of live pages before and after SEO optimization
- Archive DOM structure to verify technical SEO elements (meta tags, schema, canonical links)
- Timestamp page states for Google indexing disputes or client reporting
- Share ZIPs with stakeholders to validate crawlability and content visibility
- Collect audit-ready evidence for algorithm updates, ranking drops, or compliance checks
“It’s like Ahrefs for visual evidence — I can timestamp exactly what the site looked like when it launched, down to the DOM.”
HR Managers, Recruiters, Visa Officers, Talent Ops
Personal and professional documentation needs
- LinkedIn profile snapshots for candidate verification, post validation, and prevention of profile falsification
- Timestamped proof for employment validation and visa processing
- Archive candidate documents for compliance and audit
- Save snapshots of onboarding portals and signed contracts
- HR archiving, onboarding version control, and data integrity
"It gives us a timestamped snapshot of the entire onboarding flow — perfect for audits, visa processing, or internal reviews."
Insurance Agents, Claims Adjusters, Underwriters
Policyholder and operational documentation needs
- Timestamped proof for claims validation and incident reporting
- Archive policyholder documents for compliance and audit readiness
- Save snapshots of onboarding portals, signed policies, and payout approvals
- Share ZIP bundles with legal, underwriting, or reinsurance teams
“It gives us a timestamped snapshot of the entire claims and policy onboarding flow — ideal for validation, audit readiness, and reinsurance coordination.”
Insurance Agents, Claims Adjusters, Underwriters
Policyholder and operational documentation needs
- Timestamped proof for claims validation and incident reporting
- Archive policyholder documents for compliance and audit readiness
- Save snapshots of onboarding portals, signed policies, and payout approvals
- Share ZIP bundles with legal, underwriting, or reinsurance teams
“It gives us a timestamped snapshot of the entire claims and policy onboarding flow — ideal for validation, audit readiness, and reinsurance coordination.”
Anyone Who Needs Trusted Snapshots
Personal and professional documentation needs
- Save pricing pages, policies, receipts
- Archive agreements or service terms
- Use for personal records or disputes
- Exportable, portable, legally meaningful
"I don't just save what I see — I save what it means."
How ProofSnap Works
1
Navigate to Target Webpage
Open any web page you want to capture as evidence
2
Open ProofSnap Extension
Open the ProofSnap extension to begin the capture process and then click "Capture page snapshot".
3
Download Evidence Package
Download a comprehensive ZIP archive containing all evidence files, cryptographic proofs, and blockchain timestamps by clicking "Download zip" — or download individual files using the download icon in the Action column. Store securely on your device or in the cloud.
4
Verify with Trust Verifier
Upload your ProofSnap ZIP evidence package using the upload field, then click "Verify Evidence Package" to automatically check cryptographic integrity, validate digital signatures, and confirm blockchain timestamps. You can also use the Trust Verifier below for independent verification.
Proofsnap Trust Verifier
Upload a ProofSnap evidence package (.zip) to verify its authenticity and integrity. Our verifier checks cryptographic signatures, file hashes, and blockchain timestamps.
Essential
$8.99
per month
Monthly Snapshots: 100
- 7-day free trial included
- Export individual files
- Export zip archive
- Legal-grade metadata (timestamp, hash, source)
- Blockchain (OpenTimestamps)
Regular use, archiving
Most Popular
Professional
$16.99
per month
Monthly Snapshots: 200
- 7-day free trial included
- Export individual files
- Export zip archive
- Legal-grade metadata (timestamp, hash, source)
- Blockchain (OpenTimestamps)
Verified timestamping, audit-grade documentation
Enterprise
$24.99
per month
Monthly Snapshots: Unlimited
- 7-day free trial included
- Export individual files
- Export zip archive
- Legal-grade metadata (timestamp, hash, source)
- Blockchain (OpenTimestamps)
High-volume teams, compliance-driven workflows
Company Plans
Flexible team licensing for organizations. Unlimited snapshots for all team members.
Best Value
Annual
$130
/license/year
Minimum 2 licenses
- 7-day free trial included
- Unlimited snapshots per user
- Blockchain timestamping
- Team management dashboard
- Admin controls & user management
- Priority support
Perfect for legal teams, compliance departments, and enterprises
Monthly
$13
/license/month
Minimum 2 licenses
- 7-day free trial included
- Unlimited snapshots per user
- Blockchain timestamping
- Team management dashboard
- Admin controls & user management
- Priority support
Flexible monthly billing for teams
Frequently Asked Questions
ProofSnap is a Chrome extension that captures web pages as legal evidence with blockchain timestamping, ensuring the authenticity and integrity of digital evidence.
ProofSnap uses OpenTimestamps to create cryptographic proofs of when screenshots were taken, providing irrefutable evidence that cannot be tampered with.
ProofSnap offers a 7-day free trial included with all plans. Choose from flexible monthly or annual subscriptions: Essential ($8.99/month or $80/year), Professional ($16.99/month or $160/year), or Enterprise ($24.99/month or $240/year). Annual plans save you 20%.
- screenshot.png: Image file capturing a visual snapshot of the web page.
- metadata.json: Contains contextual details about the evidence, such as timestamp, URL, and browser information.
- manifest.json: Lists all evidence files and their hashes to verify the integrity of the package.
- manifest.sig: Digital signature for the manifest file, ensuring authenticity and integrity.
- manifest.json.ots: OpenTimestamps proof file for the manifest.json.
- publickey.pem: Public key used to verify the digital signature of the manifest.
- evidence.pdf: PDF document compiling all evidence files for easy sharing and review.
- domtextcontent.txt: Plain text content extracted from the web page's DOM.
- page.html: Full HTML content of the captured web page.
To check the integrity of your ZIP archive, upload it to the ProofSnap Trust Verifier and click the Verify manifest button.
- Unpacking: The ZIP archive is automatically extracted, revealing all included files.
-
Manifest check: The verifier reads
manifest.json, which lists each file and its expected SHA-256 hash. - Hash validation: For every file, ProofSnap computes its SHA-256 hash and compares it to the value in the manifest.
-
Result display: You’ll see a list of files with their
validity status:
- Valid: The file’s hash matches the manifest.
- Invalid: The file’s hash does not match, indicating possible tampering or corruption.
Note: ProofSnap uses the SHA-256 hashing algorithm, which ensures strong cryptographic integrity for file verification.
To verify the timestamp of your evidence using OpenTimestamps:
- Extract the ZIP archive: Unzip your ProofSnap ZIP archive to access its contents.
-
Locate files: Find
manifest.jsonandmanifest.json.otsin the extracted folder. - Open OpenTimestamps website: Go to https://opentimestamps.org/
-
Upload files: On the website, upload
manifest.json.otsas the timestamp proof andmanifest.jsonas the file to verify. - Check verification result: The site will show whether the timestamp is valid and anchored on the Bitcoin blockchain.
Note: OpenTimestamps provides cryptographic proof that your evidence existed at a specific time, independently verifiable on the blockchain.
If you have a ZIP archive from ProofSnap and want to confirm its contents haven't been tampered with, follow these steps. ProofSnap uses the SHA-256 hashing algorithm to ensure file integrity.
- Extract the ZIP archive: Unzip the file to access its contents.
-
Locate the manifest: Find the
manifest.jsonfile listing expected SHA-256 hashes for each file. -
Compute the hash manually:
-
macOS / Linux: Open
Terminal and run:
shasum -a 256 <filename> -
Windows (PowerShell):
Open PowerShell and run:
Get-FileHash -Path "<filename>" -Algorithm SHA256
-
macOS / Linux: Open
Terminal and run:
-
Compare the result: Match the computed hash
with the one listed in the manifest.
- If they match: The file is valid.
- If they differ: The file may be corrupted or altered.
ProofSnap generates forensically sound evidence with cryptographic
proofs. Admissibility depends on jurisdiction and specific legal
requirements. Consult with legal professionals for specific cases.
Contact Us
Have questions about ProofSnap or need a business solution? Get in touch with our team.
Or contact us directly at support@getproofsnap.com