Dev tools · alternatives · 2026
24 alternatives to N2O Sync
True bidirectional content sync for Notion and Obsidian
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1OS
https://github.com/acheong08/obsidian-sync Hello HN, I'm a recent high school graduate and can't afford $8 per month for the official sync service, so I tried my hand at replicating the server. It's still missing a few features, such as file recovery and history, but the basic sync is working. To the creators of Obsidian.md: I'm probably violating the TOS, and I'm sorry. I'll take down the repository if asked. It's not ready for production and is highly inefficient; Not competition, so I hope you'll be lenient.
2023 · its alternatives →
- 2
Notion 2.0▲2,156The all-in-one workspace - notes, tasks, wikis, & databases
2018 · notion.so · its alternatives →
- 3
Synced.so▲482Transform Notion Content into an Embeddable Help Center Site
2023 · synced.so · its alternatives →
- 4
Obsidian Canvas gives you infinite space to research, brainstorm, diagram, and lay out your ideas.
2022 · obsidian.md · its alternatives →
- 5
Greetings, I started using Obsidian and the brilliant Obsidian Tasks plugin to manage Tasks in my notes however it didn't quite work for me as I would lose track of Tasks when away from my laptop, and there are no reminders for Tasks so it's not easy to stay on top of things. I wrote my first macOS App to solve the problem; Reminder Sync for Obsidian. It periodically scans your Obsidian Vault for Tasks and creates Reminders for them in Reminders.app! Once your Tasks are created as Reminders they are synced through iCloud so they are also visible on iOS; this solves the main problem I had…
2024 · turquoisehexagon.co.uk · its alternatives →
- 6
Obsidian Mobile brings the power of our desktop app to your mobile devices.
2021 · obsidian.md · its alternatives →
- 7
A Starter Kit to Manage Your Whole Life
2023 · start.linkingyourthinking.com · its alternatives →
- 8
Connect your Notion workspace to your favorite apps
2021 · n8n.io · its alternatives →
- 9
Batch export & download genspark conversations to markdown
2025 · chatgpt2notion.com · its alternatives →
- 10
Ideaverse Pro▲325Manage your whole life in Obsidian
2023 · linkingyourthinking.com · its alternatives →
- 11
Specify▲447Sync your Figma files with GitHub repositories in minutes
2022 · specifyapp.com · its alternatives →
- 12
Hi HN, Today we’re launching PowerSync, a Postgres<>SQLite bi-directional sync engine that enables an offline-first app architecture. It currently supports Flutter, React Native and web (JavaScript) using Wasm SQLite in the browser, with more client SDKs on the way. Conrad and I (Ralf) have been working on our sync engine since 2009, originally as part of a full-stack app platform. That version of the system is still used in production worldwide and we’ve learnt a lot from its use cases and scaling. About a year ago we started on spinning off PowerSync as a standalone product that is…
2023 · powersync.com · its alternatives →
- 13
A few months ago I noticed that I was quickly approaching my 10GB sync limit for my daily driver vault. I considered deprecating some of the heavier files and images, but I was worried how it would affect the integrity of my vault. Instead, I took the opportunity to think to myself -- what would the perfect vault look like? I began to write down some of the key philosophies and strategies I use in my driver vault which led to indispensable plugins, which led to more indispensable philosophies and on and on it went. I've chronicled these results into a fully working vault template that…
2022 · github.com · its alternatives →
- 14M2
Hey HN, I want to share with you something I and my four colleagues have been working on for the last several years. It’s a whiteboarding and notes tool called Muse[1]. We just released a 2.0 version which includes local-first sync. A little backstory: I’m one of the authors of the 2019 essay Local-first software[2]. (Past HN discussions[3][4].) The thesis is to reclaim some of the ownership over our data that we’ve lost in the transition from filesystems to cloud/SaaS. So I’m excited to bring CRDT technology “out of the lab” and into a commercial product as a chance to prove the value…
2022 · museapp.com · its alternatives →
- 15
Contribute to memgraph/odin development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 16
Hi HN, Nick here. We’re launching OpenKnowledge (https://openknowledge.ai/), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and other agents. Available as MacOS app or Web UI+CLI. Fully free/local and OSS. We built this because we wanted a Notion-like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true WYSWIG UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes…
Jun 2026 · github.com · its alternatives →
- 17
A realtime server for the modern web
2016 · deepstream.io · its alternatives →
- 18
2-way sync between Notion and your Google Calendar
2021 · 2sync.com · its alternatives →
- 19
Collaborative block-based editor → ready to drop in your app
2025 · tiptap.dev · its alternatives →
- 20
Portal▲92Zero-config P2P encrypted folder syncing, not the 2007 game
2021 · github.com · its alternatives →
- 21
Hi HN, I built this simple command-line tool to solve a specific pain point in Obsidian plugin development. As a new plugin developer, I didn't like the idea of manually copying files from my development directory to the Obsidian vault every time I made changes. Obsidian Plugin Sync automates this process with a single command. It: - Detects plugin ID from manifest.json - Optionally builds your plugin before syncing - Copies the necessary files to your Obsidian vault - Provides a watch mode for continuous syncing during development The tool has zero dependencies beyond Python for basic…
2025 · github.com · its alternatives →
- 22
Local-first collaboration SDK for React, Vue, and Svelte. Batteries-included: Rich text, undo/redo, cursors, and presence. - Dancode-188/synckit
Nov 2025 · github.com · its alternatives →
- 23SC
SyncedStore is a library for building distributed, real-time collaborative web applications that sync automatically. This used to be quite complex, but with SyncedStore it's as easy as sharing a pie!
2021 · syncedstore.org · its alternatives →
- 24
Sync Notion to Trello, Airtable, Slack & more
2021 · unito.io · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →