Features
Everything Klyssa can do
A full, professional editing toolkit for short-form video — multi-track timeline, effects, color, captions, audio, and AI you control. It runs on your machine, and the preview always matches the export.
01 — Timeline
Timeline editing
A real multi-track editor: precise cutting, magnetic ripple, and classic NLE moves.
01
Multi-track timeline
Layer clips across typed lanes for video, overlays, text, and audio, with full compositing order.
02
Trim, split & ripple delete
Frame-accurate trimming, a blade tool to split at the playhead, and ripple delete that closes the gap.
03
Snapping & magnetic timeline
Edges and the playhead snap together; magnetic mode ripples later clips so no gaps or overlaps form.
04
Insert & overwrite
Classic NLE source editing — insert (,) ripples the track right; overwrite (.) replaces what it covers.
05
Reverse clip
Play any clip backwards. Video and audio are re-rendered so the preview and export match exactly.
06
Freeze frame
Hold the frame under the playhead as a still, automatically rippling the rest of the track.
07
Speed control
Slow down or speed up clips, with audio retimed to match.
08
Markers, undo & history
Drop timeline markers, and step through a full undo/redo history of every edit.
09
Detach & link audio
Split a video's audio onto its own lane, or link and unlink clips so they move together.
02 — Transform
Transform & compositing
Position, reframe, and combine layers — with interactive controls in the preview.
01
Position, scale & rotation
Move, resize, and rotate any clip, directly on the preview with a transform gizmo.
02
Crop tool
Reframe a clip to any rectangle. The kept region fills the canvas, in both preview and export.
03
Blend modes
Composite layers with Screen, Add, Multiply, Darken, Lighten, and Overlay modes.
04
Blurred background fill
Fill letterbox/pillarbox bars with a blurred, zoomed copy of the clip — perfect for verticals.
05
Chroma & luma key
Knock out a green screen or by luminance, tuned with similarity and blend.
06
Background removal matte
On-device subject segmentation produces a matte you can keep or invert — no green screen needed.
03 — Effects
Effects & filters
A stackable effect library and transitions that look the same on export as in preview.
01
Stackable effect library
14 cinematic looks — B&W, Vintage, Cinematic, Vignette, Glow, Film Grain, Chromatic Aberration and more. Stack, reorder, and tune per clip.
02
Per-clip blur & vignette
Add a soft blur or vignette to any clip, independent of the effect stack.
03
Stabilization
Smooth out camera shake with a two-pass analysis that re-renders the clip steady.
04
Transitions
Crossfade/dissolve plus motion transitions — slide, push, wipe, iris, and zoom — with adjustable length.
04 — Color
Color
Grade every clip and trust that what you see is what you export.
01
Brightness, contrast & saturation
Core color controls on every video and image clip.
02
White balance
Warm or cool the image with temperature and tint adjustments.
03
Grayscale & sepia
One-tap stylized looks, applied after grading.
04
Keyframed grading
Animate color and transform values over the length of a clip.
05 — Text
Text & captions
Titles, lower-thirds, and accurate captions generated entirely on your machine.
01
Text & title clips
Styled text with font, size, alignment, outline, background, shadow, and line spacing.
02
Local AI captions
Whisper transcription runs offline and produces editable caption clips — nothing is uploaded.
03
Caption export
Save an SRT or VTT sidecar alongside your video.
06 — Audio
Audio
Mix, repair, and shape sound per clip and per track.
01
Volume, mute & solo
Per-clip and per-track volume, with mute and solo for fast mixing.
02
Volume keyframes
Automate fades and level changes over time.
03
Denoise, gate & EQ
Clean up audio with spectral denoise, a noise gate, and a 3-band equalizer.
04
Auto-ducking
Automatically lower music under voiceover via sidechain compression.
05
Waveforms & retiming
See waveforms on every audio clip; speed changes retime audio cleanly.
07 — AI
AI tools
AI you direct — much of it on-device, the rest pay-as-you-go or with your own key.
01
AI assistant
Edit your timeline with natural language; the assistant reads your project and acts through tool-calls.
02
Image generation
Generate images and stickers from prompts straight into your media library.
03
Voiceover (TTS)
Text-to-speech narration in multiple voices, placed onto your timeline.
04
Music & SFX
Describe a track or sound effect and get royalty-free audio on your timeline.
05
Background removal
Real-time, on-device segmentation via ONNX + WebGPU. No cloud processing.
06
Silence removal
Detect and cut dead air from a transcript, rippling the timeline tight.
07
Auto-Shorts
Turn a long recording into short, vertical highlight clips automatically.
08
Bring your own key or credits
Use pay-as-you-go Klyssa credits or plug in your own provider key. Never a subscription.
08 — Stickers
Stickers & templates
Drop in motion graphics and reusable layouts that stay on your device.
01
Giphy search
Search animated GIFs and video clips and drop them straight onto the timeline.
02
Built-in stickers
A bundled sticker set, including animated overlays.
03
Intro / outro packs
Animated opener and closer templates to bookend your videos.
04
Custom templates
Build your own templates from an upload or an AI background; they stay local to your machine.
09 — Import
Import & formats
Bring in your footage as-is and scrub it smoothly, even at 4K.
01
Video, image & audio import
Common formats for video, images, and audio, edited where they already live.
02
Animated GIF / WebP overlays
Use animated images as looping overlays.
03
Proxy generation
Optional 720p proxies make scrubbing large or 4K sources buttery smooth.
04
Frame-accurate scrubbing
WebCodecs-backed seeking lands on the exact frame, not the nearest keyframe.
10 — Export
Export
Watermark-free output tuned for the platforms you publish to.
01
Modern codecs
WebM VP9/Opus by default, with hardware-accelerated H.264 available.
02
1080p, no watermark
Clean 1080p presets with no watermark and no locked resolution.
03
Alpha export
Export with transparency via ProRes 4444 or VP9 for overlays.
04
Loudness normalization
Normalize to ~-14 LUFS, the TikTok / Reels / Shorts target.
05
Range & GIF export
Export only a timeline range, or render an optimized animated GIF.
11 — Platform
Platform & privacy
Local-first and private by design — your footage never leaves your machine.
01
Desktop app
macOS today, with Linux and Windows on the way. Full FFmpeg-powered export.
02
Browser demo
Try the editor instantly in your browser — no install required.
03
Private by default
No uploads, no data harvesting, and no account needed to start editing.
See it for yourself
Try the editor in your browser, or join the waitlist for the desktop app.