ADD SPANISH SUBTITLES
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Reach 500 million Spanish speakers — burn AI-generated subtitles into your videos in under 60 seconds, no editor required.
THREE STEPS TO SUBTITLED VIDEO
Upload Your Video
Drop your MP4 or MOV file directly into Autosubbed. Files up to 500 MB are accepted, covering footage from phones, cameras, and screen recorders — no conversion needed.
AI Transcription
Spanish is one of the largest language corpora in Whisper's 680,000-hour training dataset, covering both Latin American and Castilian dialects. Accuracy on clear Spanish audio consistently exceeds 95%, with robust handling of regional accents from Mexico, Argentina, Colombia, and Spain.
Hard-Burned Output
FFmpeg with libass burns Spanish subtitles directly into the video pixels at the frame level. The result plays identically on every platform, device, and player — no dependency on subtitle track support.
WHY SPANISH SUBTITLES MATTER
Spanish is the second most-spoken native language on Earth, with over 500 million speakers spanning 20 countries. Latin America alone is YouTube's fastest-growing advertising market, and Spanish-speaking creators on Udemy and Instagram are scaling audiences across the US, LATAM, and Spain simultaneously.
Dominate the Spanish-language YouTube market
Spanish-speaking audiences watch more YouTube per capita than almost any other demographic. Burning subtitles into your videos lets you serve both Latin American and Spanish viewers with a single upload, without managing separate closed-caption tracks that platforms routinely mangle.
Sell your courses across Latin America
LATAM is one of Udemy's highest-growth markets, but learners expect subtitled video. Autosubbed transcribes your English or Spanish lecture, burns captions permanently into each lesson, and delivers a file that plays correctly in Udemy's player without any caption upload step.
Turn Spanish audio into shareable video content
Podcast creators converting episodes to YouTube Shorts or Instagram Reels need subtitles to compete in silent-autoplay feeds. Upload your recorded audio-over-video file and get hard-burned Spanish captions back in under a minute — ready to publish immediately.
WHY AUTOSUBBED
WHISPER AI ACCURACY
OpenAI Whisper was trained on 680,000 hours of multilingual audio spanning 50+ languages. For Spanish, this means state-of-the-art transcription accuracy that auto-detects the language without any configuration. No language hint required — upload and go.
UNDER 60 SECONDS
GPU-accelerated cloud processing means a 10-minute Spanish video — transcription, SRT generation, and FFmpeg burn — is ready in under 60 seconds.
CUSTOM STYLES
Choose fonts, colors, weight, and positioning before burning. Match your brand or channel aesthetic — every style choice is encoded permanently into every frame.
PERMANENT HARD BURN
Unlike SRT tracks that platforms ignore or display incorrectly, Autosubbed uses FFmpeg to embed Spanish subtitle text directly into the video pixels at the frame level. The result plays identically on YouTube, Instagram, TikTok, LinkedIn, and every other platform — with zero dependency on subtitle track support.