Krypt Editor Guide: Free Video Editor with Auto Captions & AI

• Multi-track timeline: video, audio and text tracks with mute, solo, lock and hide; trim, split, ripple delete, snapping, filmstrip thumbnails and waveforms.
• Compositing: per-clip opacity, 16 blend modes, shape masks, transform handles, crop and rotation.
• Effects: colour adjustment, .cube 3D LUTs, look filters, real-time effects (glitch, VHS, chromatic aberration, CRT, film grain, pixelate), green-screen chroma key and on-device AI background removal.
• Text and titles with outlines, glow, highlight boxes and 11 in/out animations, plus stickers, shapes and freehand drawing.
• Transitions: crossfades, dips, slides, pushes, wipes, zooms, spins, whip pans and blur.
• Clip animations, keyframes and speed curves, including Montage, Hero, Bullet and Jump cut presets, freeze frame and reverse.
• Audio: keyframable volume, fades, noise reduction, one-click Enhance voice, EQ, compressor, auto duck, and loudness-normalised export.
• Text to speech and Re-voice with on-device voices.
• Record your screen, camera and mic straight onto the timeline.
• Export MP4 (H.264, HEVC or AV1), WebM, M4A or WAV, up to 4K, with hardware encoding.

1. Open the Krypt Editor page on krypt.cc. That page is the only official download; copies re-uploaded elsewhere can be modified.
2. Pick the build for your system (Windows or macOS).
3. Read and accept the Software Download Terms in the prompt. The file downloads as soon as you agree, and you won't be asked again for that tool until the terms change.
4. Optional but sensible: upload the file to VirusTotal before you run it.

Windows

1. Run the installer you downloaded.
2. If Windows SmartScreen says "Windows protected your PC", click More info, then Run anyway. Krypt builds aren't code-signed yet, so SmartScreen treats them as unrecognised apps. That warning is about the missing signature, not about anything it found in the file.
3. Follow the installer, then launch Krypt Editor from the Start menu or the desktop shortcut.

macOS

1. Open the download and drag Krypt Editor into your Applications folder.
2. The first time you open it, macOS blocks it because it's from an unidentified developer. Click Done, then go to System Settings → Privacy & Security, scroll down and click Open Anyway next to Krypt Editor. On macOS 14 and older you can instead right-click the app and choose Open.
3. If macOS instead says the app "is damaged and can't be opened", the file isn't damaged: Gatekeeper is refusing an unsigned download. Clear its quarantine flag once in Terminal, then open the app again:

xattr -cr "/Applications/Krypt Editor.app"

If you saved the app somewhere other than Applications, drag it from Finder into the Terminal window after xattr -cr to paste its real path.

Optional extras

• FFmpeg. Install it (winget install ffmpeg on Windows, brew install ffmpeg on macOS) and Krypt Editor uses it to open footage it can't decode itself: ProRes, DNxHD, 10-bit camera files, AVI, MTS, WMV, MXF and more. It isn't shipped with the app.
• AI models. Everything works offline. Four features download a model the first time you use them, then cache it: auto captions (about 300 MB, or 1–1.6 GB for Accurate), text to speech (about 340 MB for English), background removal and auto reframe.

1. Import your recording, or use Record to capture screen, camera and mic straight onto the timeline.
2. Auto edit: pick a preset (talking head, voice-over, podcast, gameplay or zooms-only). Red bands preview what will be cut while you tune sensitivity, minimum pause and padding, then apply it as one undo step. Turn on the alternating punch-in zoom to hide the jump cuts.
3. For gameplay or music under your voice, use Speech (AI) mode. It listens with Whisper as well as loudness, so game audio doesn't count as talking, and it can also remove filler words ("um", "uh") and cut retakes.
4. Edit by transcript: open Transcript, select the words you want gone, and press Delete. That part is cut from every track.
5. Captions: generate them on-device with word-level timing, style them, and add karaoke word-by-word highlighting.
6. Audio: click Enhance voice, then Auto duck to lower music whenever someone talks.
7. Export with loudness normalised to -14 LUFS for YouTube, TikTok and Spotify.

1. Use Auto reframe and choose 9:16 (or 1:1, 4:5). Every clip is scaled to fill the new shape, and an on-device face detector keeps the speaker in shot, panning only when they move.
2. Footage without a clear face, like gameplay with a small facecam, stays centred. Adjust it by hand with the transform handles if needed.
3. Fill any empty space with a background: solid colour, gradient, or a blurred copy of the clip.
4. Put the hook in text on screen in the first second; most people watch with the sound off.

The AI agents button (top right) connects Claude Code, Codex, Cursor, Claude Desktop, VS Code, Windsurf, Gemini CLI or any other MCP client in one click. Then ask in plain words:

• "Cut the pauses."
• "Remove the part about sponsors."
• "Make it vertical and add a title."
• "VHS look and a crossfade on every cut."
• "Export to my Desktop."

Agents reach the whole editor through 44 tools, and each change is one undo step with an activity log and an off switch. It runs locally over a private connection on your machine.

In the Style & brief card, pick an edit style (Viral short, Cinematic, Clean tutorial, Lecture, Podcast clip, Gaming hype, Retro VHS and more) and every agent edits to it. Add Notes for the AI for standing instructions like your brand colour, or give it a reference video to match its pacing and look.

Drop a PDF on the editor to turn every slide into an image; an agent can then line each slide up with the moment you start talking about it. Key points build a list one line at a time as you say it. Chapters show as flags on the ruler, follow their clips through later cuts, and the Chapters button copies the 0:00 Intro list YouTube reads from a description.

• J / K / L shuttle backwards, stop and forwards at up to 8×.
• 4K footage gets a small preview copy in the background so it scrubs smoothly; exports always use the original.
• Got a better mic recording than your camera's? Select both and press Sync by sound to line them up to within a frame.
• An untouched recording exported at its own size and frame rate is copied losslessly, in seconds.
• Projects save as .krypt files with autosave and backups.
• Making your own soundtrack? Build it in Krypt Studio. Its voice engine is shared with Krypt Editor's text to speech.