Record it once.Ship a narrated demo.
DemoSpark cuts the pauses, moves the camera in on every click, then AI watches the footage to write the narration, voice it and caption it. No editing skills needed.
Full-featured free plan, no time limit · Requires macOS 14 or later
Open the app and start a new meeting note.
打开应用，新建一份会议纪要。
Demo
See what one take turns into.
Each of these starts as a single screen recording. No timeline work, no voice booth.
01 / 04 · Launch
Product launch video
Features
The slow parts of editing, already done.
You just use your product once. DemoSpark handles the rest — and every decision it makes stays editable.
Pauses cut automatically
It finds the stretches where nothing changes — hesitating, waiting on a spinner — and removes them. Tweak any cut on the timeline.
0:41→0:24
Example: a 41-second take, tightened to 24 seconds.
The camera follows your clicks
Wherever you click, the camera glides in. Set the zoom anywhere from 1.1× to 4×.
Recording finished · 32 min
AI writes narration from the footage
Describe your product in a sentence or two. AI watches the recording and writes a voiceover with every line timed to the screen. Edit any sentence you don't like.
Product intro
A Mac app that turns team meetings into tidy notes
- 0:00Open the app and start a new meeting note.
- 0:04When the recording ends, the key points are ready.
- 0:09Hit Share to send it to the whole team.
Smooth cursor, visible clicks
Shaky mouse paths are ironed out, every click gets a ripple, and click sounds are one toggle away.
When the recording ends, the key points are ready.
录音结束后，要点自动列好。
Voiceover, captions, a second language
Voice it in English or Chinese with captions generated for you. One click adds a translated second caption line.
Clean sound, on-device
Narrating yourself? Fan hum, keyboard clatter and room echo are removed right on your Mac. Add background music and click sounds.
Camera or avatar
Put your webcam in the video — or use a photo that gently pulses while you talk.
Show shortcuts
Pressed shortcuts appear on screen. What you type is never recorded.
Built-in browser
Record websites with no address bar or tabs, filling a clean 1280 × 720 frame.
Spotlight
Dim everything else and pull the viewer's eye to one area.
Speed ramps
Fast-forward the slow parts. Audio speeds up without changing pitch.
Freeze for narration
If a line is still being spoken, the frame holds until it finishes.
Background & framing
Rounded corners and shadows on a backdrop — or your own image.
Motion blur
A touch of blur on zooms and pans makes movement feel filmed.
How it works
Three steps to a finished product video.
- Cut pauses
- Zoom in
- Narration
- Voiceover
- Captions
How it works
Three steps to a finished product video.
Record, generate in one click, then adjust whatever you like.
- RECWindowFull screenWebsite
01
Record
Pick a window, the whole screen, or open your site in the built-in browser. Use your product the way you normally would.
- Cut pauses
- Zoom in
- Narration
- Voiceover
- Captions
02
Generate in one click
Write a line or two about your product. DemoSpark edits, moves the camera, writes the narration, voices it and adds captions.
- 16:94:31:14:59:16
03
Fine-tune and export
Rewrite a line or nudge a zoom in seconds. Export MP4 or GIF for your site and social channels.
Privacy
What you record stays on your Mac.
Recording, editing and export all happen locally. Only when you use an AI feature does DemoSpark send the small slice it needs.
Processed locally
Recording, editing, voice denoising and export run on your Mac. Your recordings are never uploaded.
AI sees only what it needs
AI features send a few screenshots, your product intro or the narration text. Trimmed footage is never sent.
Your typing isn't logged
Click positions only guide the camera. Shortcuts are recorded only when “Show shortcuts” is on.
Pricing
Free to use. Pay when you want the watermark gone.
The free plan is complete and never expires. Buy once if you don't need AI; subscribe if you make videos often and want AI writing and voice.
Free
Start here and see if it fits
$0
No time limit
Download free- Every recording, editing and export feature
- Export up to 720p, 30 fps with a “Made with DemoSpark” mark
- 100 AI credits when you sign in
- System-voice narration costs no credits
Best for regular creators
Pro + AI
AI scripts, voices and translation
$9/ mo$12
Billed $108 per year
Subscribe in the app- 1080p to 4K, 60 fps, no watermark while subscribed
- 1,000 credits every month for AI scripts, voice and translation
- Cancel anytime, keep the current period
Pro Lifetime
No AI — just crisp, clean exports
$39
One payment, yours forever
Buy in the app- 1080p to 4K, 60 fps, no watermark
- All future updates included
- Add a credit pack whenever you need AI
Credit packs
Use AI without a subscription · valid 12 months
$5
500 credits
$15
1,600 credits
$40
4,500 credits
Prices in USD; checkout shows your local price with tax included. AI is billed by usage: a 1-minute AI video (script + voice) uses about 70 credits in English, about 40 in Chinese.
FAQ
Still wondering?
Can't find the answer? Write to support@demospark.app
The features are identical and there's no time limit. Only export differs: Free goes up to 720p at 30 fps with a small “Made with DemoSpark” mark in the corner. Pro — lifetime or subscription — exports 1080p to 4K at 60 fps with no watermark.
Hand your next product video
to DemoSpark.
Free to download. Every feature included, no time limit.
Requires macOS 14 or later