Estrattore Lossless Ultimo Fotogramma Video IA
Recupera fotogrammi chiave bit-exact, scavalca il decadimento visivo finale dei generatori (-1f, -2f, -3f) e cuci video IA senza scatti.
Extracts 30 ending and 30 opening frames (~1s of motion at 30 fps). You can adjust this count anytime.
Trascina qui il tuo video IA
Supporta MP4, MOV, WebM fino a 4K (Kling, Sora, Runway, Veo, Luma, Hailuo)
100% locale nel browser. Nessun dato viene caricato su server esterni.
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...
Area di Lavoro Multi-Clip Chaining
Carica fino a 4 clip consecutivi per analizzare le giunzioni e unirli in un 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!
Scheda Guida Continuità Video IA
Impostazioni e prompt negativi per i principali modelli.
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.
Perché gli screenshot falliscono nella continuità video
Confronto tra screenshot, convertitori cloud e il nostro estrattore locale.
| Caratteristica | FreeImGen IA | Screenshot | Ezgif / Kapwing |
|---|---|---|---|
| Accuratezza Colore | 0.0% deviazione gamma | 2–5% deviazione monitor | 1–4% ricompressione |
| Micro-Scrubber | Ultimo frame, -1f, -2f, -3f | Nessuno | Solo secondi |
| Rimozione C2PA | 100% rimosso | Mantiene tag telefono | Tracce server |
| Privacy | 100% locale | Locale ma degradato | Upload obbligatorio |
Architettura Tecnica di Decodifica
L’effetto degli screenshot
Gli screenshot alterano la curva gamma introducendo salti visibili tra clip consecutivi.
Decodifica GOP via WebCodecs
Estraiamo i pixel nativi direttamente dai sync sample MP4 senza ricodifica.
Come concatenare video IA senza interruzioni
Guida in 5 passaggi per Kling e Runway.
Carica il Clip A
Trascina il video nello strumento.
Seleziona il frame nitido
Usa 0f o -1f per evitare la sfocatura finale.
Copia il PNG pulito
Ottieni l’immagine priva di metadati C2PA.
Inserisci nel Clip B
Impostala come primo fotogramma del clip successivo.
Verifica e unisci
Controlla la continuità ed esporta in MP4.
Frequently Asked Questions
I miei video vengono caricati su internet?
No. L’intera elaborazione avviene al 100% nel tuo browser.
Perché non fare uno screenshot?
Gli screenshot modificano il colore del 2-5% e riducono la risoluzione nativa.
Supercharge Your AI Filmmaking Pipeline
Join pro filmmakers using Alibaba Wan 2.1, Kling AI 2.0, Runway Gen-3 Alpha & ElevenLabs audio synchronization for studio-grade generative cinematography.