Best Free Online Markdown Editors in 2026: StackEdit, Dillinger, and HackMD

Need a free online Markdown editor that won’t strand your draft in one browser? StackEdit caught my eye for its offline editing and optional cloud sync.

Fix #1: Choose StackEdit for offline writing

StackEdit keeps local documents in your browser and shows a live preview. It also supports synchronization with Google Drive, Dropbox, and GitHub.

1. Open StackEdit and create a document. You should see an editor and a rendered preview.

2. Type a heading using # Heading in the editor. The preview should display it as a heading.

3. Open the application menu or document sidebar. You should see controls for managing your documents; their placement can vary with browser width.

4. Connect Google Drive, Dropbox, or GitHub through StackEdit’s synchronization controls if you need the document on another device. Confirm the sync finishes before closing the tab.

5. Download a copy of important .md files. You should be able to open that copy even if you clear the browser’s site data.

Local storage is handy, but it belongs to that browser profile. StackEdit’s sync option makes the setup much more useful.

Fix #2: Choose Dillinger for cloud files

Dillinger is a clean choice when you’ve already got a Markdown file to edit. Its import and export workflow is nicely done.

1. Open Dillinger and type Markdown in the source pane, or drag an existing file into it. Your text should appear in the editor.

2. Check the rendered pane after making a change. You should see the preview update beside your source text.

3. Open Dillinger’s import, save, or export controls. You should see the available file and connected-service options.

4. Authorize a supported service if you’re editing a cloud file. Dillinger supports GitHub, Dropbox, Google Drive, OneDrive, and Bitbucket, but saving there requires access to the destination.

5. Check the destination before saving over an existing file. Then download a local Markdown copy for backup.

Dillinger can also export HTML and PDF. Check the preview first, since formatting may change in the exported file.

Fix #3: Choose HackMD for shared notes

HackMD is worth a look when several people need to edit the same Markdown document. Its shared editing actually works well for meeting notes and drafts.

1. Open HackMD and create a note. You should see a place to write Markdown.

2. Type a short heading and paragraph, then switch to or open the preview. You should see the formatted note; the view controls may vary by layout.

3. Sign in using one of the options HackMD currently offers if you want to keep and manage the note in your account. The note should appear in your workspace.

4. Open the note’s sharing controls and choose who can edit it before sending the link. Check the access setting shown there; plan limits and sharing options can vary.

5. Open the note’s import or export controls when you need a separate copy. Download a Markdown file and confirm it opens locally.

HackMD is the one I’d pick for a group. Its Free team plan currently allows up to three members, unlimited notes, and three invitees. Check the current plan limits before moving a whole team’s notes into it.

Keep the file you wrote

A browser editor’s preview may differ from GitHub or your website, especially for tables, images, diagrams, and math. Test the file where it’ll be published. For a second backup, keep the downloaded .md file on a USB flash drive or external SSD.

Conclusion

StackEdit is my recommendation for solo writing: offline access plus optional sync is a useful combination. If a draft disappears, check whether browser data was cleared or synchronization finished before assuming the editor lost a cloud copy.