No moat. Still in business.
Software directory for those who don’t want to rebuild, own the updates, the bugs, the support.
- 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
- Callosum
Desktop app for designing, calling and documenting APIs that keeps an OpenAPI spec in sync, offline with no login.
Since 2024
Free trial · Developer tools · Developers
- 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
- Quadratic
Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.
Since 2023
Data and spreadsheets
- 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
- Voiden
An offline desktop app for designing, testing and documenting APIs as Markdown files kept in your Git repo.
Since 2025
Developer tools · Developers
- Echolon
Open-source API client that keeps collections as local files synced through Git, for testing REST and WebSocket APIs offline.
Free plan · Developer tools · Developers
- Yaak
A desktop app for sending and testing REST, GraphQL, gRPC and WebSocket requests, stored locally and synced through Git.
Since 2025
Subscription · Developer tools · Developers
- 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
- GiantJSON Viewer+
Android app that opens multi-gigabyte JSON, CBOR and MsgPack files, analyses HAR logs and sends API requests, all offline.
Since 2026
Developer tools · Developers
- Hoppscotch
Build, test and share API requests with your team in shared workspaces, on the hosted cloud or your own servers.
Developer tools · Developers
- Runcell
An AI agent inside Jupyter that writes and runs Python cells, reads the results and fixes errors during data analysis.
Since 2025
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
- Apicat
Offline API testing app that saves requests as .http files you can keep in Git, and imports Postman collections.
Since 2025
Free · Developer tools · Developers
- Kreya
Desktop app for calling and testing gRPC, REST, GraphQL and WebSocket APIs, storing requests as files in Git.
Since 2022
Free plan · Developer tools · Developers
- Bruno
An offline API client that saves request collections as plain text in your repo so teams can share them through Git.
Free · Developer tools · Developers