CircuitLab
circuitlab.com
What it is
CircuitLab provides in-browser tools for schematic capture and circuit simulation for students, hobbyists, and professional engineers. It supports analog, digital, and mixed-mode simulation, plus frequency-domain analysis and parameter sweeps. Users can import SPICE device models and use CSV files as signal sources. Schematics can be exported as PDF, PNG, EPS, or SVG, and unique circuit URLs make it possible to share designs or ask for help.
CircuitLab runs on Windows, Mac OS X, and Linux and works in a browser on iPad. Its membership information also describes offline access through the Chrome Web Store and SSL-encrypted access. It offers a free plan and paid subscriptions, including Micro at $24 a year, Hacker Lite at $16 a month, Hacker at $26 a month, and Pro at $39 a month. The pricing note lists a starting rate of $2/mo (annual). Commercial use is permitted with Pro and Enterprise subscriptions; otherwise, the terms describe use as personal and non-commercial unless otherwise specified. Support includes online documentation and community forums.
Spec sheet
- Purpose
- CircuitLab provides in-browser tools for schematic capture and circuit simulation for students, hobbyists, and professional engineers.Read 11 Oct 2026 · circuitlab.com
- Integrations
- The feature list says users can import SPICE device models and use CSV files as signal sources.Read 11 Oct 2026 · circuitlab.com
- Security
- The membership feature list describes access as SSL-encrypted.Read 11 Oct 2026 · circuitlab.com
- Privacy
- The privacy policy says CircuitLab may collect account information, cookies, request logs, communications, user content, and billing information.Read 11 Oct 2026 · circuitlab.com
- Support
- CircuitLab directs users to online documentation and community support forums; Enterprise support is listed with a response within 24 hours.Read 11 Oct 2026 · circuitlab.com
- AI data
- The terms say prompts, related content, context, and generated responses from AI features may be used to develop and improve those features, including training models, and may be shared with AI providers.Read 11 Oct 2026 · circuitlab.com
- Commercial use
- The terms say use is personal and non-commercial unless otherwise specified, and that Pro and Enterprise subscriptions allow commercial use.Read 11 Oct 2026 · circuitlab.com
- Free use
- The pricing page says upgrading helps keep CircuitLab's core functionality free.Read 11 Oct 2026 · circuitlab.com
- Offline access
- The membership feature list says CircuitLab works offline via the Chrome Web Store.Read 11 Oct 2026 · circuitlab.com
- Platform
- The membership feature list says CircuitLab runs on Windows, Mac OS X, and Linux, and works on iPad in a browser.Read 11 Oct 2026 · circuitlab.com
- Safety limit
- The terms do not authorize use of CircuitLab schematics or simulations in safety-critical applications such as life support, medical devices, or nuclear control systems.Read 11 Oct 2026 · circuitlab.com
- Schematics
- Users can export presentation-quality schematics as PDF, PNG, EPS, or SVG.Read 11 Oct 2026 · circuitlab.com
- Sharing
- CircuitLab provides unique circuit URLs for sharing designs and asking for help online.Read 11 Oct 2026 · circuitlab.com
- Simulation
- It supports analog and digital simulation, including mixed-mode simulation, frequency-domain analysis, and parameter sweeps.Read 11 Oct 2026 · circuitlab.com
Plans and prices
CircuitLab Hacker Lite $16 a month $16 / month For hobbyists Read 11 Oct 2026 · circuitlab.com
CircuitLab Micro $24 a year $24 / year 10 items per schematic Read 11 Oct 2026 · circuitlab.com
CircuitLab Hacker $26 a month $26 / month Custom access control lists · Schematic revision history Read 11 Oct 2026 · circuitlab.com
CircuitLab Pro $39 a month $39 / month Commercial use · For engineers Read 11 Oct 2026 · circuitlab.com
CircuitLab Hacker Lite $79 a year $79 / year For hobbyists Read 11 Oct 2026 · circuitlab.com
CircuitLab Hacker $129 a year $129 / year Custom access control lists · Schematic revision history Read 11 Oct 2026 · circuitlab.com
CircuitLab Pro $399 a year $399 / year Commercial use · For engineers Read 11 Oct 2026 · circuitlab.com
CircuitLab Student Edition $2,400 a year $2,400/year site license Official .EDU email required · Paid school subscription required Read 11 Oct 2026 · circuitlab.com
CircuitLab Enterprise Priced on request Contact Us 10-seat minimum · Team license management · Pay by PO, check, wire transfer Read 11 Oct 2026 · circuitlab.com
Strong points and limits
Strong points
- Supports analog, digital, and mixed-mode simulation.
- Exports schematics in four listed formats.
- Offers a free plan.
- Circuits can be shared through unique URLs.
- Offline access is available through the Chrome Web Store.
Limits
- Commercial use requires Pro or Enterprise.
- Terms do not authorize safety-critical applications.
- Student Edition requires an official .EDU email and paid school subscription.
Who it suits
CircuitLab suits learners, hobbyists, and engineers who need schematic capture and circuit simulation. Users planning commercial work should note that the terms allow it with Pro and Enterprise subscriptions.
Verdict
CircuitLab combines schematic tools with several simulation modes and export options, and it has a free plan. Check the commercial-use terms and safety-critical-use restriction before relying on it for a project.
Where Specifiction places it
- Electrical Design Software#7 of 418.2
