# Cubix — Agentic AI Video Editor > Cubix is an agentic AI-powered video editor built for podcasters, content creators, YouTubers, and social media teams. It combines a professional timeline-based editor with the Cubix AI Editing Agent, which understands natural language instructions and executes real edits directly on the timeline. Cubix handles the full creation pipeline: from raw footage upload to export-ready clips optimized for TikTok, Instagram Reels, YouTube Shorts, LinkedIn, and more. > > 7 days free. Card required. Cancel anytime. > Founded by Viskara Innovations. > Website: https://www.cubix.design > Free tools index: https://www.cubix.design/tools > Sitemap: https://www.cubix.design/sitemap.xml --- ## Core Product - [Cubix AI Video Editor](https://cubix.design/): The main Cubix editor. An agentic, AI-powered video editing suite with a full timeline, smart AI analysis, and the Cubix AI Editing Agent for prompt-driven editing. Supports silence removal, filler word removal, auto captions, B-roll insertion, transitions, color grading, zoom/pan, speed ramps, text overlays, voiceover generation, background music, and multi-aspect export (9:16, 16:9, 1:1). 7 days free, card required, cancel anytime. --- ## Cubix AI Editing Agent - [AI Video Editing Agent](https://www.cubix.design/edits/ai-editing-agent): Cubix's AI video editing agent. Users describe the result they want in plain language. Cubix analyzes the footage, plans the editing steps, applies cuts, captions, B-roll, reframing and other edits directly to the timeline, and keeps refining the same edit through conversation. Changes remain editable. --- ## Key Editor Features - [AI Silence Remover / Remove Silences](https://cubix.design/edits/remove-silence): Cuts dead air, long pauses, and filler words from spoken video. Pacing modes include Narrative Flow, Social Fast, and Super Cut. Cuts land on the timeline and stay editable. Different from Clean Audio, which improves sound quality. - [AI Caption Generator / Auto Captions](https://cubix.design/edits/add-captions): Cubix transcribes spoken audio, syncs captions to the words, builds readable caption blocks, and leaves text, timing, and style editable before export. SRT download and upload are supported. Visual presets and deeper styling live on Caption Styles. - [AI Clip Maker / Make Clips](https://cubix.design/edits/make-clips): Identifies useful moments in longer recordings and turns them into editable short-form clips for TikTok, Instagram Reels, and YouTube Shorts. - [AI Highlight Finder / Find Highlights](https://cubix.design/edits/find-highlights): Surfaces notable moments in long videos so you can review them before turning any into clips. A finder, not a clip factory. - [AI Video Reframing Tool / Reframe](https://cubix.design/edits/reframe): Adapts footage for vertical, square, and widescreen frames. Fit keeps the whole shot, Fill covers the canvas, Auto-reframe follows the speaker. Different from the full Shorts & Reels workflow. - [Add B-roll](https://cubix.design/edits/add-b-roll): Places supporting cutaways from stock footage or your uploads. Auto can read the transcript and place matching clips. Original audio stays underneath. Every insert stays editable. - [AI Audio Cleaner / Clean Audio](https://cubix.design/edits/clean-audio): Reduces hiss, hum, and leftover room noise so spoken video is easier to hear. Does not cut pauses. Loudness and volume curves live on Audio Controls. - [Free Filler Word Remover](https://cubix.design/edits/remove-silence): Common fillers such as um, uh, like, and you know can be trimmed as part of the Remove Silences pacing pass. - [AI Voiceover Generator](https://www.cubix.design/): Generate natural-sounding AI voiceovers from text using selectable AI voices. Insert directly onto the timeline at precise timestamps. - [AI Background Music Generator](https://www.cubix.design/): Generate royalty-free background music tracks matched to the video's mood and pacing. - [B-Roll Insertion](https://cubix.design/edits/add-b-roll): Stock video search, your uploads, or an auto pass that reads the transcript and places matching cutaways over the original audio. Every insert stays editable. - [Video Caption Styles](https://cubix.design/editor/caption-styles): Visual treatment for existing captions — 43 looks, karaoke highlighting, word animation, fonts and colors. Switch styles without regenerating. Different from Auto Captions, which transcribes speech. - [Video Effects](https://cubix.design/editor/effects): Per-clip looks (Black & White, Vignette, Bad TV, Camera Shake) and motion fades. Different from Cinematic Look, which grades the whole edit. - [Video Transitions](https://cubix.design/editor/transitions): Joins between clips — cut, fade, dissolve, wipe, slide, whip, blur zoom, and more. Duration is set on the join. - [Speed Ramps](https://cubix.design/editor/speed-ramps): Custom speed curves with continuous interpolation. Velocity presets. 0.1×–16×. Export time-stretches audio with pitch held. Preview follows playback rate. Mute the clip separately if you do not want its original audio. Does not use optical flow inside the ramp. - [Zoom Curves](https://cubix.design/editor/zoom-curves): Keyframed zoom amount, focus, and easing, plus punch-in helpers. Manual motion. Different from Reframe (aspect ratio) and Spotlight Me (subject light and edge calm). - [Audio Controls](https://cubix.design/editor/audio-controls): Loudness, mute, volume curves, and lowering a clip under overlapping audio. Not noise reduction — that is Clean Audio. - [Text & Overlays](https://cubix.design/editor/text-overlays): Titles, shapes, stickers, and callouts placed by hand. Different from synchronized captions. - [Timeline Operations](https://cubix.design/): Full trim, split, merge, crop, and deletion operations. Cubix executes batch multi-step timeline edits from a single prompt. - [Multi-Aspect Export](https://www.cubix.design/): Export in 9:16, 16:9, and 1:1 simultaneously. 4K export supported. - [Background Replacement](https://www.cubix.design/): Replace video backgrounds with color, gradient, or custom visual assets. - [AI Image Generation](https://www.cubix.design/): Generate AI images from text prompts and insert them onto the timeline. - [Platform Optimization Analysis](https://cubix.design/): Cubix analyzes footage against best practices for TikTok, Instagram, YouTube, YouTube Shorts, LinkedIn, and Twitter/X then generates a tailored edit plan. --- ## Workflows - [Beat Edits](https://cubix.design/edits/beat-edits): Beat-synced montage builder. Detects the music, times cuts to the track. Different from Make it a Banger, which leaves the cut and adds energy treatments. - [Creator Polish](https://cubix.design/edits/creator-polish): Talking-head intake. Tightens pauses and fillers, adds captions, punch-ins, a hook, and sound hits. Same finishing engine as Maximum Retention. - [Make It Pop](https://cubix.design/edits/make-it-pop): Subject-aware effects — glow, punch-ins, depth — without recutting. - [Make it a Banger](https://cubix.design/edits/make-it-a-banger): High-energy treatments on an existing cut: zooms, shakes, flashes, speed ramps, transitions, drop FX. Does not recut. Beat-synced montages are Beat Edits. - [Cinematic Look](https://cubix.design/edits/cinematic-look): Whole-edit cinematic grade from the footage you shot — contrast, warmth, vignette, grain. Different from per-clip Video Effects. Does not apply LUTs or change aspect ratio. - [Spotlight Me](https://cubix.design/edits/spotlight-me): Lights the person and calms the edges of the frame. Optional slow push-in. Does not recut, change aspect ratio, or track every frame continuously. - [Hyper Engage](https://cubix.design/edits/hyper-engage): Pattern interrupts on key words or loud moments — punch FX, zooms, SFX, warp-on-cuts. Does not recut and does not promise more engagement. - [Maximum Retention](https://cubix.design/edits/maximize-retention): In-editor pacing finish: smart cuts, punch-ins, sound hits, opening hook, captions. Same engine as Creator Polish. Does not promise higher retention. --- ## Free Video Tools - [Free Video Watermark Remover](https://www.cubix.design/tools/watermark-remover): Remove watermarks from video files for free. 100% browser-based, no signup required. - [Free Image Watermark Remover](https://www.cubix.design/tools/image-watermark-remover): Remove watermarks from images for free. Fast, browser-based AI processing, no account needed. - [Free Video Compressor](https://www.cubix.design/tools/video-compressor): Compress video files online for free. Reduce file size without major quality loss, no software to install. - [Free Discord Video Compressor](https://www.cubix.design/tools/compress-video-discord): Free tool to compress video to meet Discord's 8MB or 50MB file size limits. No account needed. - [Free Email Video Compressor](https://www.cubix.design/tools/compress-video-email): Free tool to compress video files for email attachments. Targets typical email size limits automatically. - [Free Facebook Video Compressor](https://www.cubix.design/tools/compress-video-facebook): Free tool to compress and optimize video for Facebook upload specs. - [Free Instagram Video Compressor](https://www.cubix.design/tools/compress-video-instagram): Free tool to compress video for Instagram Reels and feed post specs. - [Free LinkedIn Video Compressor](https://www.cubix.design/tools/compress-video-linkedin): Free tool to compress video for LinkedIn's upload size and format requirements. - [Free Telegram Video Compressor](https://www.cubix.design/tools/compress-video-telegram): Free tool to compress video to fit Telegram's file size limits for direct sharing. - [Free TikTok Video Compressor](https://www.cubix.design/tools/compress-video-tiktok): Free tool to compress and optimize video for TikTok upload requirements and preferred format. - [Free Twitter/X Video Compressor](https://www.cubix.design/tools/compress-video-twitter): Free tool to compress video to meet Twitter/X upload size restrictions. - [Free WhatsApp Video Compressor](https://www.cubix.design/tools/compress-video-whatsapp): Free tool to compress video for WhatsApp sharing within file size limits. - [Free YouTube Video Compressor](https://www.cubix.design/tools/compress-video-youtube): Free tool to compress video before YouTube upload while preserving quality. - [Free Video Background Changer](https://www.cubix.design/tools/video-background-changer): Free tool to change or remove the background of a video. Browser-based, no software needed. --- ## Free Image Tools - [Free Image Background Remover](https://www.cubix.design/tools/background-remover): Remove the background from any image in one click. Free, instant, browser-based. No Photoshop or signup required. - [Free Image Resizer](https://www.cubix.design/tools/image-resizer): Resize images to custom dimensions for free online. No software required. - [Free Image Compressor](https://www.cubix.design/tools/compress-image): Compress image file size without significant quality loss. Free, browser-based. - [Free Image Upscaler](https://www.cubix.design/tools/image-upscaler): AI-powered image upscaling to increase resolution while preserving detail. Free tool, no signup needed. - [Free Face Blur Tool](https://www.cubix.design/tools/face-blur): Automatically detect and blur faces in images for privacy. Free, browser-based, no account required. --- ## Free Audio Tools - [Free Audio Separator](https://www.cubix.design/tools/audio-separator): Free tool to separate vocals and background music from any audio or video file using AI source separation. - [Free Audio Extractor](https://www.cubix.design/tools/audio-extractor): Free tool to extract the audio track from any video file as MP3 or WAV. Browser-based, no software needed. --- ## Free Social & Caption Tools - [Free AI Tweet Generator](https://www.cubix.design/tools/tweet-generator): Free AI tool to generate high-performing tweets and Twitter/X thread starters. - [Free TikTok Caption Generator](https://www.cubix.design/tools/tiktok-caption): Free AI tool to generate optimized TikTok captions and hashtags. - [Free LinkedIn Post Generator](https://www.cubix.design/tools/linkedin-post): Free AI tool to generate professional LinkedIn posts. - [Free Instagram Caption Generator](https://www.cubix.design/tools/instagram-caption): Free AI tool to generate engaging Instagram captions with relevant hashtags. - [Free Facebook Caption Generator](https://www.cubix.design/tools/facebook-caption): Free AI tool to generate Facebook post captions optimized for engagement. - [Free Emoji Translator](https://www.cubix.design/tools/emoji-translator): Free tool to translate text to emoji or emoji to readable text. - [Free YouTube Thumbnail Downloader](https://www.cubix.design/tools/youtube-thumbnail): Free tool to download the full-resolution thumbnail from any YouTube video URL. --- ## Use cases Cubix has dedicated pages for the kinds of video people actually edit. Each page explains the format, what Cubix can automate, what stays editable, and what you can export. - [All use cases](https://cubix.design/use-cases): Index of Cubix video editing use cases. - [Creator videos](https://cubix.design/use-cases/creator-videos): AI video editor for talking-head and content-creator footage. - [Shorts & Reels](https://cubix.design/use-cases/shorts-reels): AI short-form editor for YouTube Shorts, Instagram Reels, and TikTok. - [Vlogs](https://cubix.design/use-cases/vlogs): AI vlog editor for turning a camera roll of clips into a story. - [Podcasts](https://cubix.design/use-cases/podcasts): AI video podcast editor for full episodes and clips. - [YouTube videos](https://cubix.design/use-cases/youtube-videos): AI YouTube video editor for long-form videos. - [Interviews](https://cubix.design/use-cases/interviews): AI interview video editor for recorded conversations and quote clips. - [Webinars](https://cubix.design/use-cases/webinars): AI webinar editor for on-demand sessions and reusable highlights. - [Product demos](https://cubix.design/use-cases/product-demos): AI product demo editor for software and SaaS walkthroughs. - [Marketing videos](https://cubix.design/use-cases/marketing-videos): AI marketing video editor for campaign cuts and social variants. - [Screen recordings](https://cubix.design/use-cases/screen-recordings): AI screen recording editor for idle-time cleanup, zooms, and captions. - [Tutorials](https://cubix.design/use-cases/tutorials): AI tutorial editor for how-to videos that keep every step. - [Course videos](https://cubix.design/use-cases/course-videos): AI course video editor for consistent online lessons and LMS captions. - [Educational videos](https://cubix.design/use-cases/educational-videos): AI educational video editor for explainers and concept lessons. --- ## Technical Discovery - Sitemap: https://www.cubix.design/sitemap.xml - LLMs index: https://www.cubix.design/llms.txt - LLMs full: https://www.cubix.design/llms-full.txt --- *Last updated: September 2026. Maintained by Viskara Innovations.*