Alternatives

Products that do what Fern does

Knowledge Management from your terminal

1
Fern▲260
Instant Docs and SDKs for your API
Sep 2025
2
Obsidian▲432
A powerful knowledge base that works on local Markdown files
2020
3OF
Obsidian for Mobile – Plain-text knowledge base on the go▲760
2021 · obsidian.md
4TO
Tolaria – Open-source macOS app to manage Markdown knowledge bases▲318
Hey there! I am Luca, I write https://refactoring.fm/ and I built Tolaria for myself to manage my own knowledge base (10K notes, 300+ articles written in over 6 years of newslettering) and work well with AI. Tolaria is offline-first, file-based, has first-class support for git, and has strong opinions about how you should organize notes (types, relationships, etc). Let me know your thoughts!
Apr 2026 · github.com
5
Ideaverse Pro▲325
Manage your whole life in Obsidian
2023
6
kuku▲544
Obsidian — but a lot has changed
Jan 2026 · kuku.mom
7TU
TUI-use: Let AI agents control interactive terminal programs▲52
Apr 2026 · github.com
8TU
Terminal UI for AWS▲390
Jan 2026 · github.com
9
Ideaverse for Obsidian▲175
A Starter Kit to Manage Your Whole Life
2023
10
whosthere▲81
Local Area Network discovery tool with an interactive TUI
May 2026 · github.com
11FA
Fern, a language for defining REST APIs that compiles into OpenAPI▲18
Hi HN, this is Danny, Deep, and Zach. We built Fern after our previous ed tech startup failed. We were frustrated with how much time we spent writing “API code” instead of working on the actual product. We tried to use OpenAPI but we were underwhelmed - the generated code wasn’t idiomatic and it still required manual work (custom templates, scripts, manually publishing SDKs to registries). The Fern compiler takes your API as input and invokes generators that output things like: SDKs, server code, a Postman collection, and an OpenAPI spec. Some technical highlights about the compiler +…
2023 · github.com
12WK
Windi – knowledge management and sharing platform based on short notes▲110
2022 · windi.app
13
KushoAI for Playwright▲88
Open-source Terminal UI, just record & get exhaustive tests
Apr 2026 · resources.kusho.ai
14TF
TUI for managing XDG default applications▲138
Author here. I made this little TUI program for managing default applications on the Linux desktop. Maybe some of you will find it useful. Happy to answer any questions.
Jan 2026 · github.com
15
Shell Sage▲106
Ai-powered terminal assistant
2025
16NB
Nimwave – build TUIs for the terminal, web, and desktop▲195
2022 · github.com
17OT
Odin – the integration of LLMs with Obsidian note taking▲160
2023 · github.com
18
Multitui▲126
Sandbox claude code, codex, or any TUI on macOS
Feb 2026 · multitui.com
19IB
I built an Obsidian plugin to create notes from BibTeX▲95
With this plugin you can create literature notes from BibTeX entries, display formatted reference lists, and instantly generate citations.
2024 · github.com
20
Obsidian▲3
Think clearly. Connect ideas. Own your knowledge.
Jul 2026 · play.google.com
21
Timmy-TUI ▲103
Local-first agent trust console with a safe local workspace
Jun 2026 · github.com
22AT
Assistant-TUI, a terminal user interface for OpenAI's assistant API▲5
Hi HN! I just released assistant-tui, a terminal user interface for OpenAI's Assistant API. If terminal is your thing, it can be a great way to test and evaluate the API and its results. It implements not only the API, but also all the infrastructure to make it work, including polling, local repository, and more. Feedbacks and stars are welcome! https://github.com/dalssoft/assistant-tui
2024 · github.com
23WS
Wren – simple yet extensible task management with CLI, Telegram, HTTP▲121
2024 · github.com
24
Noteshell▲6
One second brain. Notes, reports, dashboards — any interface
May 2026 · noteshell.io

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