Butter, Fatter, Captain Moor

Better, Faster, Caption More

Upgrade your live captions with better accuracy and faster performance

book a demobook a demo
NEW: Ai Proofreader

What

Line 21 is a caption delivery software that helps agencies create, enhance, translate and deliver live captions to their clients.

Send captions through Line 21 simply; directly using a keyboard macro or via connector.
ScreenshotsScreenshots
ScreenshotsScreenshots

Send captions through Line 21 simply; directly using a keyboard macro or via connector.

top wave

Why

We believe captions are better when humans and AI work together. The accuracy of human captioners paired with AI's contextual proof-reading ability ensures a higher standard of inclusivity for live content. This partnership empowers captioners to innovate securely and allows viewers to enjoy customized accessibility.

bottom wave

Features

We integrate a wide range of services and we deliver captions to a variety of endpoints.

100+ Languages

We support captions, translations and proofreading in over 100 languages. Because we live in a diverse world.

EnglishAfrikaansAlbanianAmharicArabicArmenianAzerbaijaniBasqueBashkirBelarusianBengaliBosnianBulgarianCatalanCebuanoChinese (Simplified)Chinese (Traditional)CorsicanCroatianCzechDanishDutchEsperantoEstonianFinnishFrenchFrench (Canadian)FrisianGalicianGeorgianGermanGreekGujaratiHaitian CreoleHausaHawaiianHebrewHindiHmongHungarianIcelandicIgboIndonesianIrishItalianJapaneseJavaneseKannadaKazakhKhmerKinyarwandaKoreanKurdishKyrgyzLaoLatinLatvianLithuanianLuxembourgishMacedonianMalagasyMalayMalayalamMalteseMaoriMarathiMongolianMyanmar (Burmese)NepaliNorwegianNyanja (Chichewa)Odia (Oriya)PashtoPersianPolishPortuguese (Portugal, Brazil)PunjabiRomanianRussianSamoanScots GaelicSerbianSesothoShonaSindhiSinhala (Sinhalese)SlovakSlovenianSomaliSpanishSundaneseSwahiliSwedishTagalog (Filipino)TajikTamilTatarTeluguThaiTurkishTurkmenUkrainianUrduUyghurUzbekVietnameseWelshXhosaYiddishYorubaZulu

Integrations

We integrate a wide range of services and we deliver captions to a variety of endpoints.

Videolinq
Deepgram

We also provide APIs for other software to integrate with Line 21.

Community

Discord

This is our home.

Here you can chat with us, get latest updates, real-time support, etc.

Join our Discord server

Docs

This is our knowledge center.

Here you find out how to use Line 21, from general use cases down to specifics.

See Documentation

Social Media

This is where the fun is.

We are present on several social media networks where we cover Line 21 and industry updates.