Karthik Ponnam

LocalMark Studio - A fast, local-first Markdown editor for real work.

LocalMark Studio is a local-first Markdown editor designed for speed and privacy. What’s special here? Local-first storage: your notes live in your browser (IndexedDB). Real file tree: create folders + files, rename, delete. Command palette: press ⌘⇧P (Mac) / Ctrl⇧P (Windows/Linux). Smart paste: paste rich HTML and get clean Markdown. Live preview: split-pane preview with scroll sync. Extras: optional Mermaid diagrams + KaTeX math.

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Karthik Ponnam
Hi Product Hunt 👋 I built LocalMark Studio because I wanted a Markdown editor that: works instantly doesn’t require an account doesn’t upload my notes anywhere still feels powerful and polished Most editors are either cloud-heavy or overly complex. LocalMark Studio focuses on local storage, performance, and a clean writing experience — while still giving you real folders, exports, and advanced Markdown features. Would love your feedback and feature ideas!
Peter Claridge

@karthikponnam Beautiful UI, great job! And congrats on your launch!

Klaus - WONG CHI HUNG

Congrats on the launch! 🚀 As a HK Markdown user, loving the local-first vibe—no cloud worries. File tree and smart paste are game-changers for quick notes. Dark mode soon? Upvoted! 📝

Karthik Ponnam

Thanks @hkklaus97 ,

Yes updated and Dark Mode is Live

Vrijraj Singh

Nice tool

Curious Kitty
If someone already uses a common setup (Obsidian + sync, VS Code + Markdown preview, Typora, or Notion for drafting), what’s the clearest ‘switching moment’ where LocalMark Studio wins—what job does it do better enough that a user would change behavior?
Jay Dev

Wow, LocalMark Studio looks amazing! The local-first storage and real file tree are exactly what Ive been searching for. How does the smart paste handle complex tables from websites?

Viktor Shumylo

Congrats on the launch! A local-first Markdown editor with this level of polish is really appealing. The focus on speed, privacy, and a real file tree makes it feel like a serious daily driver rather than a toy editor. Smart paste and scroll-synced preview are small details that make a big difference in real workflows. Curious if you’re planning any export or sync options while keeping the local-first philosophy intact.

Giovanni Feltrin

Is IndexedDB reliable enough?

Paul

It looks great in every way, but for most usage just a slow and friction.

So whenever a user modifies or edits a MD file in any other MD editor. The user would have to re-import to use your tool again. Then export again to make it available to other tools.

So you start on computer 1. You want acces on your phone, but your forgot to export it to your cloud. lNow you are at work and your presentation is stuck in a browser at home.

Thats the mother of all friction.

So you want Local only and privacy. But when your internet is down you can’t acces your Notes, because you did not export them manuallly/

I would pay for a Native app version of this that can open/update/save markdown files on the file level. Markdown is a open format.

This workflow makes it closed imho.

Go native please:) Great design.

Karthik Ponnam

@t_p_jacobs 

Thanks for the suggestion! LocalMark Studio is intentionally local-first and account-free for speed and privacy.

That said, i am exploring optional sync solutions that don’t compromise simplicity — including export and bring-your-own cloud options.

Ahmad Al Tamimi

I like it but maybe also make it as electron app

Lokesh Choudhary

Nice tool but MathML not supporting .

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