Virtual chargers
Start without hardwareDeploy a browser-based OCPP simulator with locations, connectors, sessions, logs, firmware, certificates, and OCPP configuration in one workspace — no physical EV charger required.
OCPP & OCPI Simulator to Test EV Charging Software in the Browser
OCPPLab is a browser-based OCPP and OCPI simulator and emulator for EV charging software. Deploy virtual EV chargers, route and debug OCPP traffic, and validate OCPI roaming from one workspace. No hardware lab, no waiting on partners.
Open a workspace in 2 minutes. No credit card. Connect a CSMS, deploy charger profiles, and inspect protocol traffic in real time.
- 4 versions
- OCPP + OCPI
- 800+ models
- vendor charger profiles
- 800+ hrs
- free cloud
- 50x faster
- ship at 90% less cost
For CSMS teamsFor CPO operatorsFor eMSP roaming checks
Inside the app
See the OCPPLab simulator workspace in action
A quick view of the browser-based OCPP simulator and OCPI testing workspace your team uses to validate EV charging software against a CSMS.
OCPP and OCPI simulator workspace demo video
EV charger profile catalog
Simulate the EV charger profiles your team actually deploys.
Vendor-style profiles with realistic connector layouts, current types, supported kWh, and OCPP behavior for CSMS testing.
How it works
From first connection to first useful test in minutes.
01
Connect your CSMS
Point your CSMS at one OCPP endpoint. Our OCPP simulator runs OCPP 1.6J and OCPP 2.0.1 flows against virtual EV charger profiles, so you start CSMS testing without touching physical hardware.
02
Pick your fleet, or your partners
Choose EV charger profiles for an interop run, or spin up virtual roaming partners with the built-in OCPI simulator to test OCPI before the real network goes live.
03
Run the workflow
Send OCPP and OCPI actions from the browser, inspect responses, and save repeated EV charger or roaming checks as release workflows.
04
Ship with proof
Use live dashboards, replayable logs, and shareable traces to show what passed, what failed, and what changed between releases.
Built for every layer of the charging stack
Virtual chargers, protocol routing, roaming validation, and monitoring probes. One workspace, no hardware.
OCPPLab SDK
Deploy thousands of EV chargers, run a full roaming backend, and stress-test OCPP/OCPI at scale, all in minutes.
Hardware Compatibility
Deploy thousands of different hardware models across OCPP 1.6 and OCPP 2.0.1, all in minutes.
“Hardware labs still matter, but they should confirm behavior you already rehearsed. Make the first integration failure happen in a browser, not during a field rollout.”
Inside the app
The workspace your EV charging team uses before production.
An OCPP and OCPI simulator to deploy chargers, route traffic, test roaming, monitor health, and turn repeated checks into release workflows.
OCPP proxy and debugging
See every messageRoute charger traffic through OCPPLab, inspect every OCPP message, and reproduce CSMS integration failures before they reach production infrastructure.
OCPI roaming data hub
Roam before partners go liveUse the OCPI simulator to validate partner-facing locations, EVSEs, connectors, tokens, sessions, commands, charging profiles, and CDR-style workflows before go-live.
Playgrounds and workflows
Manual to repeatableSend OCPP and OCPI actions from the browser, inspect responses, then turn repeated checks into reusable release workflows.
Monitoring probes
Catch regressions soonerRun synthetic probes across EV charger, CSMS, and OCPI roaming paths so boot failures, slow responses, and broken endpoints show up early.
AI-assisted operations
Faster investigationAsk questions about charging data, generate charts, inspect query results, and review proposed OCPP actions before sending them.
Protocol coverage
Version support for OCPP and OCPI
Test the protocol versions your team actually ships: OCPP 1.6, OCPP 2.0.1, OCPI 2.1.1, and OCPI 2.2.1. From the OCPP 2.0.1 simulator to OCPI testing for roaming, keep charger behavior, roaming flows, and regression coverage in one place.
Release workflow
Put OCPPLab before the field trial.
Hardware labs and partner sandboxes are still important, but they are slow places to discover basic integration bugs. Use the OCPPLab simulator earlier in the release cycle for CSMS testing and to validate the behavior your team controls.
Reproduce field bugs
Replay the charger, authorization, transaction, or roaming path that failed without waiting for the same hardware state.
Onboard chargers
Create model-like EV charger profiles, connect them to your CSMS, and verify setup before devices arrive on site.
Validate roaming partners
Check OCPI data and commands before a real CPO, eMSP, hub, or network partner is on the critical path.
Run release checks
Turn repeated manual checks into workflow runs with logs your team can inspect after every product change.
Use cases
Where teams use OCPPLab
Charger onboarding, CSMS release QA, OCPI roaming checks, and hardware proxying — from the same workspace.
CSMS vendor QA
OCPP 1.6 + 2.0.1Exercise BootNotification, Authorize, transactions, MeterValues, and charging profiles against virtual EV chargers before each release. Run CSMS testing and OCPP load testing with many concurrent stations, and replay failed sessions instead of rebuilding hardware state.
CPO charger onboarding
Vendor profilesValidate model-like EV charger profiles, connector layouts, and OCPP configuration against your CSMS before hardware arrives on site.
eMSP / roaming integrator
OCPI 2.1.1 + 2.2.1Spin up virtual partners for OCPI roaming testing and walk through Locations, Tokens, Sessions, Commands, Tariffs, and CDR flows before connecting to a live OCPI hub.
Hardware QA
OCPP proxyRoute a physical EV charger through the OCPP proxy, inspect every message, and reproduce field failures with replayable logs your team can share.
Proof before procurement
Check the platform before the sales call
Before you book a demo, check the pieces that matter: OCPP and OCPI simulator coverage, charger profiles, roaming workflows, product screens, pricing fit, and support options.
OCPP 1.6, OCPP 2.0.1, OCPI 2.1.1, OCPI 2.2.1
Inspect the protocol depth yourself
Version pages, supported modules, and example flows are on the site. Verify protocol scope before you book a sales call.
Review the protocolsABB, EVBox, Wallbox, Alfen, OCPI hub-style workflows
Match the chargers you actually run
Vendor-profile and roaming workflow pages show whether OCPPLab covers the charger and OCPI paths your team validates today.
See the integrationsLogs, workflow runs, charger profiles
Judge the product before the demo
The site shows protocol logs, reusable workflow runs, and charger-profile surfaces. Decide if OCPPLab is operationally useful, not only conceptually interesting.
Explore the featuresStarter, Pro, Enterprise
Pick a plan without decoding a table
Pricing and plan-fit sections spell out which plan matches early validation, release QA, or enterprise-scale rollout work.
Compare plansCloud now, on-prem or hybrid when needed
See deployment and support up front
Smaller teams start in the cloud. Enterprise buyers walk through on-premises or hybrid deployment, plus dedicated support, before procurement begins.
Talk through deploymentSelf-serve trial or scoped demo
Start evaluating without a long sales cycle
A technical buyer starts on the free Starter plan for early validation, or books a scoped demo when vendor coverage, roaming, or support requirements get complex.
Book technical demoFAQ
Frequently asked questions
Answers about protocols, charger profiles, scale testing, security, and pricing.
Test your CSMS today. Ship faster tomorrow.
Book a 30-minute demo and run a real scenario against your stack with our OCPP simulator. Or start free and launch your first virtual EV charger in minutes.
- No credit card required
- First test in minutes
- Contact sales for enterprise
Blog
OCPP Simulator & EV Charging Software Guides
6 min read
OCPP AI Agents for EV Charging: Uses & Architecture
How OCPP AI agents automate EV charging — fault diagnosis, smart charging, and CSMS testing — plus the architecture, guardrails, and how to test agents on virtual chargers.
Read guide →
6 min read
LLM vs SLM for EV Charging: Which to Use and When
Large language models vs small language models for EV charging software — the cost, latency, edge deployment, and data privacy tradeoffs, with a decision framework for OCPP fault triage, monitoring, and AI agent workloads.
Read guide →
7 min read
Best OCPP Simulators & Emulators in 2026 Compared
Compare the best OCPP simulators and emulators for CSMS testing, including cloud platforms, open-source tools, and field utilities for OCPP 1.6 and OCPP 2.0.1 workflows.
Read guide →
Ship faster.Start testing free