Advanced Protocol Definition
Field-level control, dynamic structures, custom CRC, and flexible endianness — define once, reuse broadly.
Build. Simulate. Validate.
Don't wait for hardware. Start integration testing today.
Protolith Studio is the engineering system of record for communication validation. Model your protocols, build counterpart-device behavior as executable flows, automate integration tests, and reuse it all across projects — without writing a line of throwaway code.
- Runs locally · Your data stays yours
- Works offline for 30 days
- Free plan for personal use and evaluation
Free, with an account
New accounts get a 30-day Pro trial.
- 1 device, 1 channel
- 3 parsers × 10 messages
- 112 CRCs + XOR / SUM
- Live raw & parsed monitoring
- Flows up to 20 nodes
- 10-minute recordings
FeaturesDefine, Execute, Observe —
Define, Execute, Observe —
One Coherent Platform
Everything you need to define, execute, and observe — in one coherent platform.
Real-Time Observability
Watch raw and parsed traffic live, plot telemetry, and trace every event during execution.
Multi-Transport Communication
Native UDP, TCP, and Serial support across multi-device workflows — no custom adapters required.
Deterministic Flow Control
Compose rich behavior with if, while, register, and task starter nodes — plus run, pause, resume, stop, and fail semantics for repeatable validation.
Reporting & Test-Time Failures
See failures the moment they happen, drill into the offending step, and export a PDF test report of the run (Pro).
Reusable Across Projects
Protocols, devices, and flows live as first-class shared assets — your second project starts where the first one finished.
BenefitsBenefits That Truly
Benefits That Truly
Matter To You
Validation that scales with system complexity, not against it.
Faster Failure Diagnosis
Trace failing frames back to the offending field in seconds, not hours of log spelunking.
Unified Platform
Definition, execution, monitoring, and reporting living in the same coherent workspace.
Reusable Assets
Protocol models and flows port across programs — write once, validate everywhere.
Local & Secure
Runs on your hardware, in your network. Your protocols and data never leave your environment.
Custom Reports
Export each run as a PDF test report that follows your test procedure step by step.
Lower Maintenance
Fewer bespoke scripts to babysit. Standard patterns scale with your system, not against it.
Easy To Learn, Easy To Use
A visual, node-based environment with sensible defaults — engineers ship their first validation flow on day one.
How It WorksFrom Protocol To Report
From Protocol To Report
In Three Steps
STEP 01
Define your protocol
Model headers, payloads, CRC, and endianness with field-level precision.
STEP 02
Build and execute flows
Compose multi-device flows with deterministic state and run them on demand.
STEP 03
Observe and report
Watch live behavior, then export a clean report of every assertion and event.
Product Tour
See What You Get
Real screens from Protolith Studio, not mockups.
Flows. Send, listen, branch and loop across devices, then read the result per step.
Analysis. Plot decoded fields live while the test runs.
Parsers. Header, payload, footer and validators, field by field.
Monitoring. Raw bytes and parsed values per channel, recorded for later.
Why Protolith StudioEngineered To Replace
Engineered To Replace
The Validation Stack
Trade scattered scripts and disconnected tools for one coherent platform that scales with your systems.
Other Tools
- Validation logic scattered across scripts
- Custom parsers rebuilt every project
- Monitoring lives in separate tools
- Hard to trace failures across systems
- Maintenance cost grows with complexity
Protolith Studio
- One platform for the full validation lifecycle
- Reusable protocol models across projects
- Built-in raw and parsed monitoring
- End-to-end traceability from flow to report
- Scales with system complexity, not against it
Built For Secure Labs
Your Data Stays Yours
Made for teams that test on isolated networks and real hardware.
Runs on your computer
Parsers, flows, recordings and reports stay on your machine. Nothing is uploaded to a cloud workspace.
Works offline
After activation the app works 30 days without internet. Computers that can never connect use a renewable license file.
Signed licenses
Licenses are signed on our own server with a key that never leaves it. If the server can't be reached, the app keeps working.
Your content is never sent
Protocols, sent or received data and device, channel or file names are never collected. Anonymous usage data can be turned off; it is off on Enterprise.
Pricing
Start Free, Upgrade Later
Every new account gets a 30-day Pro trial. When a paid license ends, the app returns to Free and your projects stay.
Free
For personal use, education and evaluation
$0Free forever
- 1 device, 1 channel
- 3 parsers, 10 messages each
- 112 built-in CRCs, XOR / SUM checksums
- Live raw and parsed monitoring
Pro
Most popularFor engineers using it in commercial work
$29per month, or $290 per year
- Unlimited devices, channels and parsers
- Custom CRC, repeating groups, channel identifier
- Unlimited recording, parsed recording
- Loops, parallel tasks, Periodic Listen
Enterprise
For air-gapped and regulated environments
CustomQuote, PO and invoice
- Air-gapped yearly license file
- Seat-based licenses, 2 computers per seat
- Usage data off
- SLA, priority support, training
Prices in USD, excluding VAT. Team plans: $290 per seat per year.
Built For Every RoleOne Platform,
One Platform,
Every Engineering Role
Device definitions, protocol models, and test flows authored by one role become first-class shared assets — every other role inherits them instead of rebuilding. The more people use Protolith Studio, the more time it gives back, exponentially.
System Engineers
Define authoritative protocol contracts and exercise them across the architecture.
Embedded Engineers
Validate firmware against real, parsed traffic without writing throwaway harnesses.
Test Engineers
Author repeatable, multi-device flows that map cleanly to your test procedures.
QA Engineers
Audit pass/fail trends with built-in reporting and traceable assertion history.
Production Engineers
Run end-of-line validation on every unit, with deterministic outcomes and reports.
Process Engineers
Standardize validation methodology across teams with shared, reusable assets.
FAQ'sCommon Questions
Common Questions
With Clear Answers
What protocols does Protolith Studio support?
Protolith Studio ships native UDP, TCP, and Serial datalinks, plus a field-level definition layer for designing custom binary protocols — including dynamic structures, configurable endianness, and pluggable CRC variants.
Does Protolith Studio run locally or in the cloud?
Locally, on your computer and inside your network. Your protocol definitions, sent and received data, and test artifacts never leave your environment. The app contacts our license server only to activate and renew the license and, on Free and Pro unless you turn it off, to send anonymous usage statistics and crash reports. Usage data is off on Enterprise.
How does it handle multi-device coordination?
Flows model devices as first-class participants with deterministic state transitions, so a single test can stimulate one device, observe another, and assert on the joint behavior.
Is there a free version?
Yes. Free is for personal use, education and in-house evaluation, and needs only an e-mail account. New accounts get a 30-day Pro trial, started online. Commercial production use needs a paid license.
Does it work without internet?
Yes. After activation the app works for 30 days without a connection; connecting once renews it. Computers that can never connect use a license file: a renewable 30-day file on Free, a yearly file on Enterprise.
What happens when a paid license ends?
The app returns to Free. Your projects are never deleted; projects over the Free limits can still be opened and viewed.
Is it suitable for safety-critical industries?
It runs locally and offline, flows run the same way every time, and Pro exports a PDF test report of each run. Air-gapped licensing, SLA and priority support come with Enterprise; requirements traceability is on the Enterprise roadmap.
Are AI-assisted features available today?
Not yet. AI features are planned after launch: protocol drafting from documents, an assistant chat and support for local models. They will use your own API key and can be turned off.
Contact UsBring Protolith Studio To
Bring Protolith Studio To
Your Engineering Team
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