No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- CircuitLab
Draw electronic schematics and run analog and digital circuit simulations in the browser, with no install needed.
Since 2012
Design and images · Schools and tutors
- MLJAR Studio
Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.
Since 2017
Data and spreadsheets
- Appwrite
Open-source backend for app builders with auth, databases, storage, functions and hosting, run in the cloud or on your own servers.
Since 2021
Developer tools · Developers
- Traceformer
Upload a KiCad or Altium schematic and get an AI review of wiring mistakes checked against part datasheets before you order boards.
Since 2026
Free plan · Something else · Manufacturing
- pbar.io
Lets developers share live progress of scripts and jobs through a link, via an API or a tqdm replacement.
Uptime and monitoring · Developers
- BOM Manager
Keeps one parts library across all the circuit boards in a project, with live supplier prices and lists of what to order.
Since 2026
Free · Inventory and stock · Manufacturing
- Quadratic
Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.
Since 2023
Data and spreadsheets
- Engula
Drop-in Redis replacement that aims to halve memory use, with a trial mode to test savings on your own data.
Free trial · Developer tools · Developers
- Back4app
Hosted app backend with database, user login and generated REST and GraphQL APIs, so developers skip running servers.
Developer tools · Developers
- AIR Blackbox
Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.
Since 2026
Free plan · Developer tools · Developers
- DBLift
Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.
Since 2026
Free plan · Developer tools · Developers
- Copperhead
An AI agent that edits KiCad schematics and boards and reruns electrical and design rule checks until they pass.
Since 2026
Free · Developer tools
- Overcast
Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.
Since 2026
Developer tools · Developers
- BV Circuits
Upload a schematic, netlist and parts list to get a report of wiring mistakes and design fixes before you order boards.
Since 2026
Something else
- Embedr
A desktop workspace where an AI agent helps hardware makers read datasheets, lay out KiCad boards and write firmware.
Free plan · Developer tools · Developers
- Runcell
An AI agent inside Jupyter that writes and runs Python cells, reads the results and fixes errors during data analysis.
Free plan · Developer tools · Developers
- FastAPI Cloud
Hosting for Python FastAPI apps that deploys with one command and handles scaling and HTTPS for developers.
Since 2026
Developer tools · Developers
- GS-Calc
Windows spreadsheet that opens huge files with millions of rows and adds pivot tables and statistics tools.
Since 2023
One-off payment · Data and spreadsheets