Desktop App

ASR Aligner

Real-time speech-to-text alignment for teleprompter and broadcast professionals. Works fully offline — no cloud, no latency, no data leaves your device.

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ASR Aligner · session_001
REC
Welcome to the future of live broadcasting.
Our AI aligns your speech in real-time,
word by word, with zero cloud latency.
Just speak naturally — the script follows.
00:42
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Windows
Windows 10 / 11 · 64-bit
NSIS installer (.exe)
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Linux
Ubuntu 22.04+ · x64
AppImage (.AppImage)
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macOS Apple Silicon
macOS 12+ · M-series
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macOS Intel
macOS 12+ · Intel
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Prefer not to install? Use Web App — no install needed

Free to start · Works fully offline · No audio leaves your device

Everything ASR Aligner Can Do

Purpose-built capabilities designed to deliver measurable results

Live Speech Alignment

Words light up in your script the instant they're spoken. Sub-100 ms latency keeps the teleprompter perfectly in sync with the speaker — even at broadcast speed.

100% Offline ASR

Powered by on-device Vosk models. No audio ever leaves the room — ideal for sensitive content, live events, and locations with poor connectivity.

Multi-Language Support

Switch between Arabic, English, French, Spanish, and more without restarting. Swap ASR models on the fly for multilingual productions.

See It In Action

What You Get From Day One

  • Sub-100 ms word-level alignment with live audio
  • On-device Vosk ASR — no internet required
  • Teleprompter scroll driven by speech pace
  • Session recording with timestamped transcript
  • SRT / VTT / plain-text export
  • Free tier · Pro tier · Enterprise self-hosted

Live broadcast and news studios

Conference and event keynote speakers

Podcast and video content creation

Accessibility and live captioning

How It Works

Three steps from zero to results

1

Load Your Script

Paste or import your script. The aligner auto-detects language and selects the best on-device ASR model.

2

Start Speaking

Hit record. Words highlight in real-time as you speak — the teleprompter scrolls automatically to match your pace.

3

Export & Share

Download a timestamped SRT, VTT, or plain-text transcript the moment the session ends. No upload required.

Simple, Fair Pricing

Start free. Upgrade when you need more.

Free

For trying things out.

$0 /forever
  • 5 scripts
  • 3 folders (2-level nesting)
  • 20,000 char script length
  • 1 saved display profile
  • Remote teleprompter
  • Basic aspect ratios & fonts
  • Public share links
  • Import PDF / DOCX
  • AI tools (summarize, translate)
  • Analytics — last session only
  • Two-speaker mode
Get Started Free
Most Popular

Pro

Everything you need to ship. 7-day free trial — no card required.

$9 /month
  • Unlimited scripts
  • 100 folders (5-level nesting)
  • 200,000 char script length
  • 10 saved display profiles
  • Remote teleprompter — 3 concurrent rooms
  • All aspect ratios & fonts
  • 10 active public share links
  • Import PDF / DOCX
  • AI tools — 50 uses/month
  • Full analytics + export
  • Two-speaker mode
  • Audio recording — 60 min/month
  • Team workspaces
Start 7-Day Free Trial

Enterprise

Custom limits, SLAs, and SSO.

Custom /month
  • Unlimited scripts & folders
  • Unlimited script length
  • Unlimited saved display profiles
  • Remote teleprompter — 100 concurrent rooms
  • Custom aspect ratios & fonts
  • Unlimited public share links
  • Import PDF / DOCX
  • Unlimited AI tools
  • Full analytics + export
  • Two-speaker mode
  • Unlimited audio recording
  • Team workspaces
  • SSO / SAML integration
  • Dedicated SLA & support
Contact Sales

Want to manage your subscription or compare plans in detail?

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Common Questions

Everything you need to know about ASR Aligner

Yes — completely. ASR Aligner runs on-device using Vosk models. Audio never leaves your machine. An internet connection is only needed for cloud sync on the Pro plan.
The Free tier ships with English, Arabic, and French models. Pro adds Spanish, German, Russian, Chinese, Japanese, Hindi, and more. All models run fully offline.
ASR Aligner ships as a native desktop app for Windows, macOS (Apple Silicon & Intel), and Linux. A web version is also available for quick access from any browser.
Word-level alignment latency is typically under 100 ms. Accuracy depends on the chosen model and microphone quality — in a quiet studio environment expect 95%+ word accuracy for supported languages.
Enterprise customers can supply or commission a fine-tuned Vosk-compatible model for domain-specific vocabulary (medical, legal, broadcast). Contact us to scope the project.
The web app gives instant access from any browser but requires a live microphone and an internet connection for loading. The desktop app runs fully offline, has lower latency, and bundles the ASR models locally.

Ready to use ASR Aligner?

Download the desktop app or open the web version instantly — free to start.

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