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DalVideo – Screen recorder with offline AI captions and built-in editor

DalVideo – Screen recorder with offline AI captions and built-in editor

by arigaram·Mar 9, 2026·2 points·1 comment
Visit ProjectView on HN

AI Analysis

●●SolidSolve My ProblemSlick

Offline Whisper captions beat Loom's subscription with one-time $30 purchase.

Strengths
  • •Whisper.net integration generates 99+ language captions entirely offline with no cloud upload
  • •Hardware encoding via NVENC, AMF, QuickSync supports 4K@120fps without performance hits
  • •Free tier includes all features with 5-min limit and zero watermarks
Weaknesses
  • •Windows-only via WPF excludes macOS and Linux users entirely
  • •Smart Trim silence detection lacks configurable threshold controls in UI
Target Audience

Tutorial creators, Windows developers, content makers

Similar To

OBS Studio · Loom · Camtasia

Post Description

Hi HN, I built DalVideo, a screen recorder for Windows with offline AI features.

Key technical details: - AI captions powered by OpenAI Whisper, runs 100% offline – supports 99+ languages - AI noise removal (RNNoise) in real-time - Smart Trim: auto-detects and cuts silent sections - Built-in editor (trim, split, delete) so you don't need a separate tool - Hardware encoding: NVENC, AMF, QuickSync – up to 4K@120fps - Codecs: H.264, H.265, AV1 in MP4/MKV - Drawing overlay, keystroke display, webcam PiP for tutorials

Built with .NET 10 + WPF, FFmpeg 7.1 (LGPL), Whisper.net.

Free version includes all features (5-min recording limit, no watermark). Pro is $29.99 one-time.

No telemetry, no cloud, no subscription. All AI processing stays on your machine.

Download: https://daolh.dev/products/dalvideo/

I'd love feedback on the UX and what features you'd want next.

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