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AI video editor: edit your footage to the next pass

Refine recorded footage and generated clips with our AI video editor tools. Correct captions, adjust color, extend a shot, upscale video, or prepare a smaller file for sharing. Choose the task, then open the tool with the controls it needs.

Use our video editing platform for the next production pass. AI-powered operations handle speech recognition, new footage, and upscaling; direct controls let you refine subtitle timing, exposure, framing, and export settings.

AI video editor tools for existing footage

Choose the operation by what needs to change in your video. A caption pass edits the words on screen. Color grading changes the picture’s treatment. Extension generates additional footage. Compression prepares a smaller sharing copy.

AI video editor tools for existing footage
Editing taskTool on YouArtControls and result
Add or correct subtitlesAuto Subtitle GeneratorSpeech recognition, editable cues, styling, SRT download or captioned MP4
Refine light and colorVideo EffectsExposure, contrast, curves, color wheels, LUTs, and finishing effects
Add action before or after a shotVideo ExtenderExtension direction, prompt, duration, and output resolution
Increase image dimensionsTopaz Video Upscaler2× or 4× scaling and optional smoother motion
Prepare a smaller fileVideo CompressorTarget size or quality, available format, picture, and audio controls

Our AI video editing tools work together around the footage you have. Use automation when the task needs recognition or generated frames, and manual editing controls when you want to adjust a particular value yourself.

Edit videos with AI-assisted captions

Generate subtitles from spoken video, or import an SRT file you already have. Review the transcription, cue timing, and visual style before choosing the output.

Start the AI video editor pass with the footage’s main communication task. A spoken explanation needs accurate captions and readable timing. A product reveal may need color and framing before text. Choose the editing order around what the audience needs to understand first.

Generate and correct the transcription

Open a video from your device or YouArt assets. Sign in to generate captions from speech. Review names, punctuation, technical terms, and quieter lines while replaying the relevant part of the video.

In the AI video editor process, speech recognition prepares editable text. Correct each cue’s wording so the caption follows the spoken meaning in plain language. If you already have a subtitle file, import SRT and work directly with its text and timing.

Refine subtitle timing and placement

Edit the start and end times of each subtitle cue. Keep the words on screen with the spoken phrase, and review pauses so captions do not linger into the next moment.

Choose from nine caption presets, then adjust size, text color, highlight color, and placement to suit your brand. Preview captions over bright and dark backgrounds, keeping faces and important visual details readable.

Use the AI video editor preview to check subtitle placement through the whole clip. A caption that reads clearly over one frame can overlap a face or product detail later. Review moving subjects, changes in background brightness, and the final frame before export.

Choose SRT or a captioned MP4

An SRT file stores subtitle text and cue timing. Download SRT when the next editing step needs a separate subtitle file. Export a captioned MP4 when the finished picture should keep the chosen font, color, placement, and animation.

Imported SRT cues display as whole captions. Word-by-word highlighting uses timestamps from speech recognition. Editing a cue’s text or timing clears its word timestamps, so review the caption behavior after making those changes.

Automatic generation requires sign-in and uses credits based on audio duration. Captioned-video export also requires sign-in and uses cloud rendering. The AI video editor tools keep local subtitle editing and SRT downloads in your browser.

AI video editor controls for color and framing

Refine the footage you already selected. Correct the light and color first, then add a deliberate grade or framing treatment. Watch the moving clip as well as a paused frame before downloading the edit.

Balance exposure and color

Video Effects includes exposure, contrast, highlights, shadows, whites, blacks, temperature, tint, vibrance, and saturation. Begin with the adjustment that makes the subject easier to see, then shape the overall color treatment.

Use our AI video editing software for a specific finishing decision: lifting a dark face, warming a portrait, balancing bright areas, or reducing a distracting color cast. Compare several moments in the clip so the treatment suits the full shot.

Keep a clear purpose for the AI video editor color pass: correct a light imbalance, establish a consistent look, or emphasize the subject. Compare the original footage with the treatment at several moments, especially where lighting or camera position changes within the shot.

Work with curves, color wheels, and LUTs

Adjust each curve to shape contrast and individual red, green, and blue channels. Color wheels let you adjust shadows, midtones, and highlights separately. These controls provide a more targeted pass than applying the same change across the entire image.

Import a .cube LUT when you have a look to apply, then refine its strength. Add bloom, halation, grain, or a vignette when the effect supports the scene. Keep texture and glow restrained enough to leave the main subject readable.

Video Effects accepts MP4, MOV, or WebM clips up to 60 seconds and 200 MiB. Editing and downloading happen locally in your browser, making this a direct finishing step within your AI video editor process.

Shape the frame with letterboxing

Our letterbox tool controls the visible aspect ratio with black bars inside the existing video frame. Choose a ratio such as 1.85:1, 2:1, or 2.39:1, then adjust the picture’s vertical position within the visible area.

Set an entrance, exit, or both when the bars should move with the scene. Adjust transition timing while reviewing faces, subtitles, and the horizon. The bars cover the existing picture, so choose the composition around the details that need to stay visible. Letterbox exports can use MP4 or WebM, with an audio option for keeping or removing the soundtrack in the finished download from your browser session.

Improve video clips with extension and upscaling

Use new frames when the revision needs more action or larger image dimensions. Extension and upscaling serve different tasks in an AI video editor workflow: one continues the scene, while the other increases its delivery size.

Extend a shot before or after its source

Upload a source clip and describe the new action. Choose whether to add footage before the first frame or after the last one. Direct the subject and camera together: a person keeps walking, a drone rises, or the camera settles into the opening composition.

Video Extender accepts source clips up to 30 seconds long and generates 4–30 seconds of additional footage per run. Choose 480p, 720p, or 1080p output and review the credit amount after attaching the source.

The new segment returns as a separate file, ready for the next editing step with the original. Extension pricing includes the source duration and the generated footage. Check the movement, lighting, and camera direction at the join before finishing the sequence.

Review the original and generated segment together in your AI video editor process. Follow the camera’s speed and direction, the position of the subject, and the lighting at the join. Write the text prompt around the continuing action rather than an unrelated scene.

Upscale video with Topaz

Our Topaz Video Upscaler provides 2× or 4× scaling. The factor applies to both image dimensions: 2× takes 1080p footage to 4K. Choose the factor according to the source and the required delivery size.

Optional smoother motion generates intermediate frames up to 60 fps. Use that setting when the footage needs a different motion cadence, then review pans and moving details alongside faces, edges, and textures.

Choose the AI video editor operation that addresses the problem. Generate additional action when the scene ends too soon; upscale when the picture needs larger dimensions; adjust the color when the existing footage needs a different finish.

Edit videos online from source to export

Work through the creative changes before preparing a smaller sharing copy. Keep the original file available.

  1. Identify the main editing task

    Watch the complete source clip and choose what needs attention. Open the caption tool for spoken words, Video Effects for grading, or an AI-powered tool for extension or upscaling. Avoid applying every operation to every piece of footage.

  2. Finish the picture and captions

    Correct subtitle text and cue timing. Refine exposure and color, then choose the framing treatment. If you add letterboxing, review the bars and captions together so important details remain visible.

    Use your AI video editor workflow to keep each decision identifiable. Review the generated extension with the source, or compare the color treatment across the clip before moving to the delivery pass.

    Keep the delivery task separate from creative changes in the AI video editor. Choose the take, captions, grade, and framing first. Then prepare an output copy with the file size, picture settings, and sound that suit its intended playback and sharing destination.

  3. Compress the finished video for sharing

    Open the compressor and choose a target file size or a quality setting. Advanced controls include available output format, resolution, frame rate, codec, video bitrate, and audio settings.

    Target-size mode budgets picture and sound together. Quality mode lets you prioritize detail without setting a final size in MB. Review movement, faces, and readable text, then download the compressed video. Your original remains unchanged.

    The compressor processes locally without a video upload. Use this final step in the AI video editor workflow when the creative version is ready but the file needs to be easier to share.

Video formats, processing, and export choices

Video files have different source requirements and output choices in each tool. Choose the video editing tool for the task, then check its input, processing, and download options before starting.

Video formats, processing, and export choices
ToolSource and limitsProcessing and output
Video EffectsMP4, MOV, or WebM; up to 60 seconds and 200 MiBLocal browser grading and effects; download the edited clip
Auto Subtitle GeneratorSpoken video or imported SRTLocal caption editing and SRT download; audio recognition and captioned MP4 use server processing
Video ExtenderSource video up to 30 secondsAI-generated additional footage; new segment returned separately
Topaz Video UpscalerMP4, MOV, WebM, or M4VUploaded footage processed for 2× or 4× scaling; optional frame interpolation
Video CompressorMP4, MOV, MKV, WebM, or unencrypted M4V; browser codec support appliesLocal target-size or quality compression with available format and audio settings

Opening a container format also requires a compatible codec. In the compressor, MP4 with H.264 is a practical sharing option. Review the available encoder and output settings in your browser before choosing the video format.

Our AI video editor tools use local and server-side processing for different operations. Subtitle generation sends extracted audio for recognition; captioned-video export uploads the source for cloud rendering. Local effects, letterboxing, and compression work in your browser.

Access, credits, and watermark-free output

Credit-based operations in the AI video editor workflow display their amount before the run. Caption generation uses audio duration; extension includes source and added-footage duration. Review the selected settings and displayed amount before processing.

Paid subscriptions include video editing, a recurring credit allowance, advanced models, and watermark-free output. Additional credit purchases require an active subscription. Our plans and pricing show current allowances and billing options.

Browse our video features when the next production step needs another tool. Start with the footage you have and choose the change that improves its role in the finished video.

Return to the AI video editor tool that controls the change you need. Caption corrections belong in subtitle cues, tonal changes belong in grading controls, and additional action belongs in extension. Keep the source available so each new export can start from the appropriate version.

Frequently asked questions

Work on recorded or generated footage with subtitles, color grading, effects, letterboxing, compression, extension, and upscaling. Use direct controls for changes such as exposure or cue timing, and AI-powered operations for speech recognition, generated footage, or upscaling.

Bring your next clip into the AI video editor workflow

Choose the task, refine the footage, and download the version you are ready to share.

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