MNMNOTE vs Obsidian: A Browser-First Alternative

MNMNOTE is a browser-based markdown note app with wiki-links, offline support, and end-to-end encrypted sharing — no install, no account. Obsidian is a desktop and mobile app that stores notes as local Markdown files but, by its own developers' design, "is not available as a web app."¹ Both keep your notes on your own device.

The structural difference is the install boundary. Obsidian's first beta shipped on March 30, 2020, built by Shida Li and Erica Xu, who met at the University of Waterloo.¹ It runs on Windows, macOS, Linux, iOS, and Android — every platform where you can install a binary.^{1 2} Erica Xu has compared the design to a code editor: an IDE "works by opening a local folder of code files (basically plain text)," she told Ness Labs, and "there's no need to upload my code anywhere."³ MNMNOTE makes the same local-first commitment by storing your notes locally in your browser, on your own device, instead of a folder on disk — which means it opens in a tab on any machine, including the borrowed laptop where you cannot install anything.

How is MNMNOTE different from Obsidian?

MNMNOTE runs entirely in your browser and stores notes locally on your own device; Obsidian is an installed application that stores notes as Markdown files in a folder.^{1 4} Both are local-first. Both support markdown, wiki-links, and backlinks. The difference is the runtime: a tab you already have open versus a binary you download, install, and update per device.

That difference is the whole post. Obsidian's developers chose the installed-app path on purpose.

The trade-off is real in both directions. An installed app reaches the filesystem, the OS, and a deep plugin runtime that a browser tab cannot match. A browser tab reaches every device with a modern browser and asks nothing of the operating system. MNMNOTE stores notes on your own device and works fully offline, the same local-first posture Obsidian made famous, delivered without the install step.^{4 5}

What carries over from Obsidian to MNMNOTE is the part most people care about: markdown you can read in any editor, wiki-links that build a graph of connected notes, and backlinks that show you what points at the note you are reading. What does not carry over is the install ritual. Obsidian asks you to download a binary, run it, and repeat that on every machine and every operating-system update. MNMNOTE asks you to open a URL. On a Chromebook, a corporate laptop with locked administrator rights, or a phone you do not want to clutter with apps, that single difference decides which tool you can actually use.

The two apps also draw the boundary of "minimal" in different places. Obsidian is minimal at its core and maximal at its edges, where 4,390 community plugins let a vault grow into anything from a task manager to a spaced-repetition trainer.⁶ MNMNOTE is minimal all the way down. There is one editor, one set of typographic defaults, and no marketplace to wander. That is a deliberate constraint, not a missing feature, and the next two sections are honest about who it serves and who it does not.

How does Obsidian compare on price?

Obsidian is free for personal use — "Free without limits. No sign-up required. No strings attached" — and its optional Sync add-on costs $4 per user per month billed annually, which totals $48 a year.^{7 8} MNMNOTE takes the local-first route: notes stay on your own device, work offline, and never reach a server by default.⁵

So Obsidian splits its model into a personal-use core and a paid live multi-device sync subscription.

The Obsidian numbers are worth stating plainly. Obsidian publishes Sync Standard at $4 a month billed annually, which works out to $48 a year, with a $8-a-month Plus tier above it.⁸ That is the line where live, always-on multi-device sync sits — real server infrastructure that someone has to build and run. I keep it on the table rather than glossing over it, because the moment a comparison post overclaims is the moment a reader stops trusting it.

Where MNMNOTE leans is sharing rather than continuous sync. MNMNOTE includes end-to-end encrypted sharing of any single note: you send one note to one person over a link, and the text decrypts only in the recipient's browser.⁵ Obsidian's published service for putting notes online, Publish, is a separate paid product. If your need is "let one person read this one note, privately," MNMNOTE answers it with a single encrypted share. For the full sync-versus-sync breakdown, the Obsidian Sync alternative post goes deeper than this one can.

How does Obsidian compare on privacy and portability?

Both apps are private by architecture — notes live on your device, not on a company server. Obsidian "stores notes privately on your device" as "plain text Markdown files," and its manifesto states "your data is stored on your device, inaccessible to us."^{4 9} MNMNOTE stores notes locally in your browser, on your own device, and never sends them anywhere by default.⁵

Portability is where plain text earns its keep.

Obsidian's files are Markdown on disk. You can open them in any editor, sync them with any file tool, version them in Git, and read them long after the app that made them is gone. MNMNOTE exports the same Markdown and can share an encrypted copy of any note over a link, with the text decrypted only in the recipient's browser.⁵ The two apps land in the same place by different roads: Obsidian through a folder you own, MNMNOTE through a browser store you control and an export button that hands the text back as plain files.

The local-first thesis both apps inherit is older than either of them. Martin Kleppmann and the Ink & Switch group argued in their 2019 paper that software should let you "own your data, in spite of the cloud," treating the network as an enhancement rather than a dependency.¹⁰ A note you can export is a note you cannot be locked out of. That is the same argument I made in why your notes should outlive your app, and it is the reason a browser tab with an export button can be as durable as a folder of files.

Side-by-side comparison

The table below is the load-bearing summary of how MNMNOTE and Obsidian differ across eleven dimensions. Every cell cites a primary source: Obsidian's own pages, its community forum, the Wikipedia entry, or MNMNOTE's published positioning. Skim the whole table first, then stop and read whichever single row you do not yet believe.

The plugin row is the one to read twice. Obsidian's 4,390 community plugins are a genuine advantage MNMNOTE does not try to match.⁶

Who should use MNMNOTE?

Use MNMNOTE if you want Obsidian's local-first markdown without installing anything: on a Chromebook, a locked-down work laptop, a library machine, or a phone browser. Use it if you value editorial typography, a single focused editor over a plugin marketplace, and end-to-end encrypted sharing of individual notes. It opens in a tab and asks for no account.⁵

It fits the reader who wants fewer, better notes.

MNMNOTE is a browser-based markdown editor with a live preview and wiki-links — built by enthusiasts as an independent project, running entirely in your browser with nothing to install.⁵ The design language adapts Andrew Kim's "Minimally Minimal" editorial aesthetic — light weights, a near-monochrome palette, a page that reads like print. If the friction of "download, install, update, repeat across four devices" is the part of Obsidian you never loved, the browser path removes it.

It also fits the person who shares notes more than they sync them. Sending one encrypted note to a collaborator, a client, or a friend in MNMNOTE decrypts only in their browser.⁵ You do not have to choose a tool by its install footprint or its plugin count — sometimes the right note app is simply the one that is already open in a tab and that hands the text back as plain Markdown when you are done.

Who should NOT use MNMNOTE?

Do not use MNMNOTE if your workflow depends on Obsidian's plugin ecosystem: Dataview queries, Excalidraw canvases, community themes, or any of its 4,390 plugins.⁶ Do not use it if you need raw filesystem access, deep operating-system integration, or a mature desktop-grade graph view. For those, Obsidian's installed-app model is the better tool.

This is not false modesty. It is positioning.

Obsidian has six years of plugins, a forum where the browser-version request alone has gathered 264 likes, and a manifesto-driven community larger and older than MNMNOTE's.^{11 9 6} If you have already built a vault around twenty plugins, MNMNOTE will feel spare by comparison, because it is. It chooses one editor done carefully over a marketplace done broadly. That is a real trade, and for plugin-heavy power users, Obsidian wins it cleanly. A comparison post that could not say so would not be worth reading.

Frequently Asked Questions

These are the questions people actually type when they look for an Obsidian alternative that runs in a browser. Each answer is short enough to lift on its own, and each one is sourced to Obsidian's published pages or MNMNOTE's committed positioning. Start with the first if you only read one.

Is there a browser or web version of Obsidian? No. Obsidian is desktop and mobile software, and its developers state it "is not available as a web app."¹ A forum thread requesting a browser version has been open since June 17, 2020 with 264 likes.¹¹ MNMNOTE delivers the same local-first markdown and wiki-links in any browser, with no install required.⁵

What is the best Obsidian alternative that works in a browser with no install? MNMNOTE is a browser-based markdown note app with wiki-links, backlinks, offline support, and end-to-end encrypted sharing, built specifically to need no install.⁵ It stores notes locally in your browser, on your own device, rather than as files on disk, so it runs on any device with a modern browser — including machines where you cannot install software.⁵

How much does Obsidian cost, and is it free? Obsidian is free for personal use — "Free without limits. No sign-up required. No strings attached."⁷ Its optional Sync service costs $4 per user per month billed annually, which totals $48 a year, or $5 billed monthly.⁸ MNMNOTE is local-first: notes stay on your own device and work offline by default.⁵

How does MNMNOTE handle moving notes between devices? MNMNOTE is local-first: every note lives on the device you wrote it on, stored in your browser, and works fully offline.⁵ To move a note elsewhere, it includes end-to-end encrypted sharing of any single note over a link — the text decrypts only in the recipient's browser. Obsidian's own live multi-device Sync costs $48 a year.⁸

Can MNMNOTE open my existing Obsidian markdown notes? MNMNOTE reads and writes standard Markdown, the same format Obsidian uses for its files.^{4 5} Because both apps are markdown-native, the text of an Obsidian note moves into MNMNOTE without conversion. Obsidian-specific plugin syntax and embeds will not carry their behavior, since MNMNOTE has no plugin marketplace.⁶

Does Obsidian or MNMNOTE work offline? Both work offline. Obsidian is an installed app that reads local files with no network dependency.⁴ MNMNOTE works offline in your browser: after the first visit it runs entirely in your browser, with notes stored locally on your own device and never sent to a server by default.⁵

Why did Obsidian choose to be a desktop app instead of a web app? Obsidian's design treats notes like code files in a local folder. Co-founder Erica Xu told Ness Labs that a code editor "works by opening a local folder of code files (basically plain text)," with "no need to upload my code anywhere."³ That folder-on-disk model is native to an installed app; MNMNOTE pursues the same local-first goal using browser storage.⁵

Obsidian proved that local markdown is the durable shape of a note. MNMNOTE's bet is that the shape does not need an installer — that a browser tab is enough.

A note tool should ask as little of your machine as possible. MNMNOTE (mnmnote.com) lives in your browser — local-first markdown and wiki-links, no install, no account.

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