Extractor Sin Pérdida de Último Fotograma de Video IA
Extrae fotogramas clave exactos al píxel, evita el desenfoque final de los generadores de IA (-1f, -2f, -3f) y verifica la continuidad sin saltos de color.
Extracts 30 ending and 30 opening frames (~1s of motion at 30 fps). You can adjust this count anytime.
Arrastra tu clip de video IA aquí
Compatible con MP4, MOV, WebM hasta 4K (Kling, Sora, Runway, Veo, Luma, Hailuo)
100% en tu navegador. Tus videos nunca se suben a ningún servidor.
Demuxing video GOP atoms...
Parsing ISO-BMFF sync sample atoms and decoding final GOP in browser memory
Chaining Quick Recipe
Feed this clean frame as the starting keyframe of your next clip in Kling ("Extend Video"), Runway Gen-3 ("First Frame"), or Wan 2.1 Image-to-Video.
If the 0f frame has motion blur from rapid panning, click -1f or -2f in the micro-scrubber below.
Precision Frame Studio
Renders precision opening and ending frames with millisecond accuracy. Select the ideal keyframe to bypass motion blur, artifacts, or loop transitions.
Clip Loop Continuity (Selected Tail Frame vs Selected Head Frame)
Analyzes whether the clip's end frame seamlessly matches its opening frame for cyclic loops or reverse chaining.
Comparing seam delta...
Espacio de Encadenamiento Multiclip
Coloca hasta 4 clips consecutivos para inspeccionar empalmes y unirlos en un video MP4 continuo.
Clip #1
Drop video or browse
Clip #2
Drop video or browse
Clip #3
Drop video or browse
Clip #4
Drop video or browse
Seam Continuity Diffs (Clip A Last Frame vs Clip B First Frame)
Upload at least 2 clips above to inspect transition continuity and calculate seam scores.
Gapless MP4 Sequence Ready!
Guía de Continuidad para Generadores de Video IA
Fotogramas recomendados y prompts negativos por modelo.
Kling AI 1.5 & 2.0
Trending #1 for ExtensionsKling AI clips frequently suffer from a subtle 1-frame motion decay or luminance fade at the exact tail sample. Selecting -1f or -2f provides a significantly sharper subject edge for "Extend Video" chaining.
Runway Gen-3 Alpha & Turbo
Pro Filmmaking StandardIn Runway Gen-3, use the clean PNG as the "First Frame" of your next generation. Combine with Motion Brush to freeze stationary background elements.
MiniMax Hailuo AI (Video-01)
Photorealistic SOTAHailuo generates intense dynamic motion and human physics. The last 2 frames often feature velocity blur; using -2f guarantees a crisp focal plane.
Alibaba Wan 2.1 (14B)
Latest 2025 SOTA Open WeightsAlibaba Wan 2.1 is the latest breakthrough for image-to-video. When chaining in ComfyUI or WebUI, selecting -1f avoids end-sample latent slowing, providing flawless motion flow.
Luma Dream Machine (Ray 2)
Seamless Looping & Ray 2For perfect 360-degree loops or multi-shot sequences, extract both First Frame and Last Frame to verify seam difference before triggering "Extend".
Tencent HunyuanVideo (13B)
Cinematic Open WeightsHunyuanVideo uses a 3D VAE with excellent temporal stability. Feeding an uncompressed, C2PA-free PNG keyframe avoids latents artifacting during image-to-video initialization in ComfyUI.
Google Veo 2
4K Cinema FidelityVeo maintains exceptional adherence to prompt physics and 4K cinema resolution. Always use 100% uncompressed PNG to prevent compression macroblocking on the input keyframe.
PixVerse V3.5
Fast Multi-Shot KeyframingPixVerse V3.5 features dedicated Start & End keyframe fields. Use -1f to bypass final motion vector overshoot when chaining scenes together.
Pika Labs 2.1
Pikffects & Camera ControlUse Pika camera controls (Pan / Tilt / Zoom) locked to 0.1 strength when extending from the extracted keyframe to ensure smooth scene continuation.
OpenAI Sora
Closed Preview (Limited Access)Notice: OpenAI Sora remains in closed preview with waitlist access. For immediate, production-ready AI video chaining, use Kling AI 2.0, Runway Gen-3 Turbo, Hailuo, or Wan 2.1.
Midjourney Video
Artistic Style FocusPreserve Midjourney artistic style by feeding clean PNGs stripped of foreign EXIF so Midjourney can properly parse the starting frame aesthetics.
Por qué las capturas de pantalla fallan en videos de IA
Comparación con capturas de pantalla y conversores en la nube.
| Característica | FreeImGen IA | Captura de Pantalla | Ezgif / Kapwing |
|---|---|---|---|
| Fidelidad de Color | 0.0% de desfase gamma | 2–5% de cambio por pantalla | 1–4% por compresión |
| Microdeslizador | Último fotograma, -1f, -2f, -3f | Ninguno | Solo por segundos |
| C2PA y Metadatos | 100% eliminado | Mantiene metadatos del móvil | Rastros de servidor |
| Privacidad | 100% local en navegador | Local pero de baja calidad | Obliga a subir el video |
Arquitectura Técnica de Decodificación
El problema de las capturas de pantalla
Las capturas alteran la curva de color y añaden barras negras, creando un corte brusco en el siguiente clip.
Decodificación directa de átomos MP4
Analizamos los paquetes de video para extraer el fotograma exacto sin recodificar.
Cómo encadenar videos de IA sin saltos
Flujo de trabajo profesional en 5 pasos.
Sube el Clip A
Arrastra el video al extractor.
Elige el fotograma nítido
Usa 0f o -1f para evitar el desenfoque final.
Copia el PNG limpio
Obtén la imagen libre de marcas C2PA.
Úsalo en el Clip B
Ponlo como fotograma inicial en Kling o Runway.
Verifica y une
Comprueba la continuidad y genera el MP4 final.
Frequently Asked Questions
¿Se suben mis videos a internet?
No. Todo el procesamiento se realiza 100% de forma local en tu navegador.
¿Por qué no usar una captura de pantalla?
Las capturas alteran el color en un 2-5% y recortan la resolución nativa.
Supercharge Your AI Filmmaking Pipeline
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