Which rules does it check?

Maximum line length (MD013), single top-level H1 (MD025), no trailing whitespace (MD009), consistent bullet markers (MD004), ATX-only heading style (MD003), blank lines around headings (MD022), blank lines around fenced code (MD031), and no empty links (MD042). Each rule has its own toggle.

Is it the same as markdownlint?

Inspired by DavidAnson/markdownlint but dependency-free and runs 100% in your browser. Covers the 8 most impactful rules from the markdownlint rule set.

Yes. Each rule has its own toggle. Turn off anything you don't want flagged (e.g., max line length for documents where long lines are OK).

Does it check inside code blocks?

No. Fenced code blocks are skipped so code samples don't trigger false positives.

Markdown-linter og stilsjekk

Sjekk Markdown for vanlige stilproblemer: etterfølgende mellomrom, overskriftsgap, inkonsekvente punkttegn.

Markdown-inndata 0 tegn

Problemer 0 total

0Errors

0Warnings

0Info

Paste Markdown to start linting.

Maks linjelengde

Enkelt H1 Ingen etterfølgende mellomrom Konsistente punkttegn Bare ATX-overskrifter Tomme linjer rundt overskrifter Tomme linjer rundt kodeblokker Ingen tomme lenker

Sammendrag — Hva gratis Markdown-linter og stilsjekk gjør

Hva dette gratisverktøyet er

Free Markdown Linter checks a document against the 8 most impactful style rules from the markdownlint rule set — line length, single H1, trailing whitespace, consistent bullets, ATX headings, blank li

Personvern: Dette verktøyet kjører helt i nettleseren din. Teksten din blir aldri lastet opp, logget eller bufret. Lukk fanen og den er borte. Verifiser i DevTools → Network: ingen forespørsler sendes.

Hvorfor det er gratis (og hvordan vi holder det gratis)

Läuft im Browser.

Brukstabell

Hurtigreferanse

Inndata	Utdata	Typisk størrelse	Hastighet	Pålogging nødvendig
Markdown (.md)	Lint report (issues + stats)	Any document size	< 50 ms	No