The open-source, auditable device intelligence engine — a closer, more transparent alternative to FingerprintJS Pro, with an MIT-licensed client and EU/US data residency.
tracio.ai: MIT-licensed, public SDK you can audit (github.com/Tracio-App/sdk)
FingerprintJS Pro: Closed-source Pro agent
tracio.ai: EU or US data residency, no third-party sharing
FingerprintJS Pro: Signals processed on the FingerprintJS cloud
We believe in transparency. Here is where we excel and where FingerprintJS Pro has genuine strengths.
Side-by-side look at how each system processes your data.
Client (Browser) Your Server tracio.ai Server
| | |
|-- Load SDK (120KB) ---->| |
| | |
|-- Collect 300+ signals ->| |
| (non-blocking) | |
| | |
|-- Encrypted payload --->|-- Forward request -->|
| | |
| | AI Analysis |
| | Cross-Session Match |
| | Confidence Score |
| | |
| |<-- JSON response ----|
|<-- Visitor ID + data ---| |
| | |
* Data encrypted at rest & in transit |
* No third-party data sharing |Client (Browser) FPJS CDN FPJS Cloud
| | |
|-- Load Pro agent ------>| |
| (closed source) | |
| | |
|-- Collect signals ----->| |
| | |
|-- Payload ------------>.|..... to cloud ....-->|
| | |
| | Processing |
| | (their servers) |
| | |
|<-- Response -----------.|..... from cloud .----|
| | |
* Signals processed on FingerprintJS servers |
* Closed-source, obfuscated Pro agent |Cost analysis at different usage levels.
This is a code change, not an endpoint swap: tracio.ai ships its own SDK, response shape, and cookie. Visitor IDs do not carry over, so plan for returning visitors to look new for a period, or map them to your accounts with linkedId. Teams with straightforward integrations typically complete migration in 1-2 days. Complex setups with custom rules may take 1-2 weeks.
Install the tracio.ai client SDK (npm install @tracio/sdk) and initialize it with Tracio.init() — a single getResult() call returns the visitor ID and bot verdict
Replace your server-side polling with a tracio.ai webhook handler. Results are pushed to you signed with X-Tracio-Signature in our own flat camelCase payload — a different shape from FingerprintJS, so you map the fields once
Deploy and test in parallel — run both solutions side-by-side during a transition period to verify accuracy and validate your integration before switching over
The best choice depends on your priorities. Here is a straightforward breakdown.
See how FingerprintJS Pro stacks up against the wider market — including tracio.ai and other credible tools — in our honest alternatives roundup.
Read the FingerprintJS Pro alternatives guideStart on the free tier — 2,500 API calls a month, no sales call required. Upgrade when the verdicts prove themselves.