kostenlosvskostenloseWhich spelling fits?

Which to use

“kostenlos” and “kostenlose” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#1,517
“kostenlos” frequency rank
#4,628
“kostenlose” frequency rank
6145
confusion score

Side-by-Side Comparison

Feature kostenlos kostenlose
Definition nicht mit Kosten verbunden Nominativ Singular Femininum der starken Deklination des Positivs des Adjektivs kostenlos

Where the eye mixes kostenlos and kostenlose

Muted = shared; highlighted = the visual trap. They share 9 letters in sequence. kostenlos runs 9 letters (CVCCVCCVC) against kostenlose's 10 (CVCCVCCVCV) - the length gap alone is often enough to separate them once you know to check it.

9 ch
kostenlos
10 ch
kostenlose

Why the eye confuses kostenlos with kostenlose

A purely visual mix-up. kostenlos ([ˈkɔstn̩loːs]) and kostenlose ([ˈkɔstn̩loːzə]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “kostenlos” sits inside “kostenlose”. Our composite confusion score for this pair is 6145, derived from the frequency rank of both members and their visual similarity.

kostenlos is recorded at frequency rank #1,517, classified as anadj, pronounced [ˈkɔstn̩loːs]. kostenlose is at rank #4,628, tagged as anadj, pronounced [ˈkɔstn̩loːzə].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 6145, this pair ranks #1,992,564 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of kostenlos vs kostenlose

Shared letters: eklnost. Private to "kostenlos": -. Private to "kostenlose": -.

"kostenlos" · 9 letters · shape CVCCVCCVC  ·  "kostenlose" · 10 letters · shape CVCCVCCVCV

Known mistypes of this pair

  • kostenlos ← kkostenlos · kosetnlos · kosstenlos · kostelnos · kostenllos · kostenloss · kostenlso · kostennlos
  • kostenlose ← kkostenlose · kosetnlose · kosstenlose · kostelnose · kostenllose · kostenloes · kostenlosse · kostenlsoe

Frequently Asked Questions

Do "kostenlos" and "kostenlose" mean the same thing in a sentence?
No. They are said differently ([ˈkɔstn̩loːs] versus [ˈkɔstn̩loːzə]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "kostenlos" or "kostenlose"?
"kostenlos" is the more common of the two: it sits at frequency rank #1,517 in our German list, against #4,628 for "kostenlose". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "kostenlos" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "kostenlose" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,992,564 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "kostenlos" and "kostenlose" also get mixed up with nearby pairs, the highest-scored neighbour is "kostenlose vs kostenloser". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #1,992,564 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list