Klyssa 0.9.8

Windows x64 installer for Klyssa 0.9.8. Includes the updated AI/video features with Grok Imagine video generation; Seedance 2.5 / BytePlus has been removed.

Klyssa 0.9.7

Removed Seedance 2.5 / BytePlus Premium video. Video generation is Grok Imagine only: Lite, Standard, and Pro.

macOS Apple Silicon DMG.

Klyssa 0.9.4

Fixed a bug where large images (e.g. upscaled AI-generated PNGs over 4MB) rendered as partially black or corrupted in the preview — Klyssa's local media server was silently truncating files to their first 4MB when the browser didn't send a byte-range request, handing the image decoder a cut-off file. Whole files now transfer intact regardless of size.

Fixed the timeline lagging while zoomed in: the ruler was rendering a tick mark for every visible time unit across the entire project (thousands of off-screen DOM nodes at high zoom on long projects) instead of just the visible range.

Cutting or splitting a clip very close to its start/end edge now tells you why nothing happened instead of failing silently.

Removed the "Boomerang loop" button under Inspector > Clip Tools — it always failed with an FFmpeg error and was superseded by the timeline's "Loop to fill > Boomerang" mode, which is unaffected.

Improved reverse and boomerang-loop preview playback: fixed a frame-cache eviction bug that could show stale or incorrect frames during reverse scrubbing.

Windows FFmpeg re-pinned to a current, verified LGPL build.

Windows x64 installer.

Klyssa 0.9.2

Preview frame now contain-fits the project aspect, so overlay position and scale match export instead of shifting when the preview box is letterboxed.

Blend modes (screen, add, multiply, overlay, and friends) render in both Canvas2D and WebGPU preview.

Export range honors an explicit start/end from the last export or agent, and filmstrip thumbs share one decoder so pasted copies of the same clip do not stall playback.

Windows x64 installer. macOS Apple Silicon DMG to follow in a follow-up upload.

Klyssa 0.9.1

Preview no longer copies whole video files into memory. Local media streams with HTTP Range, so large timelines open without a multi-minute freeze or black playhead.

Overlapping clips decode with WebCodecs (canvas + Web Audio) instead of extra <video> elements that stall macOS hardware decode.

Timeline and media-grid thumbs are cached JPEG filmstrips, not extra video decoders.

macOS Apple Silicon DMG; Windows x64 installer (same pair as 0.9.0).

Klyssa 0.9.0

First public macOS Apple Silicon build. Free editor, no account required.