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Head-to-head · AI Video Caption Generators

SRTGen vs SmartSub

  • Updated Sep 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score SRTGen #4 in AI Video Caption Generators 7.5/10 Free plan · paid from $8/mo Free plan✓ 4 of 4 features Visit SRTGen
SmartSub #5 in AI Video Caption Generators 7.4/10 Free plan Free plan✓ 4 of 4 features Visit SmartSub

SRTGen leads on 0 checks, SmartSub on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSRTGen · 7.5/10
  • Free planboth

SRTGen scores higher on our rubric for ai video caption generators: 7.5 against 7.4 out of 10; our editors rank them #4 and #5.

SRTGen is the better fit for API users needing affordable caption workflows. SmartSub is the better fit for technical users wanting free local captioning.

  • SRTGen fits best

    API users needing affordable caption workflows

  • SmartSub fits best

    Technical users wanting free local captioning

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature SRTGen 7.5/10 Visit ↗ SmartSub 7.4/10 Visit ↗
At a glance
Editor score 7.5 7.4
Ranking #4 in AI Video Caption Generators #5 in AI Video Caption Generators
Best for API users needing affordable caption workflows Technical users wanting free local captioning
Pricing model Free plan + paid Free
Starting price $8/mo Not published
Free plan ✓ ✓
Free trial — —
Deployment Cloud Desktop
Platforms Web Windows, macOS, Linux
Integrations 5 integrations 16 integrations
Features SRTGen 4/4 · SmartSub 4/4
Caption styling ✓ ✓
Burn-in captions ✓ ✓
Speaker identification ✓ ✓
Brand caption presets ✓ ✓
Specs
Max video length Not published Not published
Caption languages Not published Not published
Subtitle export Other formats Other formats
Our review
Pros
  • Free plan includes 20 signup credits and 2 GB storage
  • Supports styling, translation, speaker labels, and burn-in rendering
  • REST API, dubbing, and voice cloning support higher-tier workflows
  • Free, open-source desktop app for Windows, macOS, and Linux
  • Supports local and cloud ASR, translation, voice cloning, and dubbing
  • Batch processing, speaker labeling, styling, burn-in, and multiple exports
Cons
  • Free screen recordings are limited to 5 minutes
  • Starter includes one team seat and 20 GB storage
  • Developer API access begins with the Pro plan
  • Optional cloud providers may add usage charges
  • Desktop workflow may not suit browser-first teams
  • Advanced features may require technical configuration of models or providers
Our verdict

SRTGen is a browser-based AI video caption platform for creators, educators, marketers, media organizations, and teams producing multilingual video. It transcribes video and audio, generates synchronized subtitles, translates captions, and…

Read the review →

SmartSub is an open-source desktop application for turning video and audio into subtitles, then editing, translating, dubbing, styling, and rendering them into finished videos. It is aimed at technical users who want free local captioning…

Read the review →
  1. SRTGenAI Video Caption Generators 7.5Free plan · paid from $8/mo
  2. SmartSubAI Video Caption Generators 7.4Free plan

Strengths and trade-offs

  • SRTGen — where it wins

    • Free plan includes 20 signup credits and 2 GB storage
    • Supports styling, translation, speaker labels, and burn-in rendering
    • REST API, dubbing, and voice cloning support higher-tier workflows

    Where it doesn't

    • Free screen recordings are limited to 5 minutes
    • Starter includes one team seat and 20 GB storage
    • Developer API access begins with the Pro plan
  • SmartSub — where it wins

    • Free, open-source desktop app for Windows, macOS, and Linux
    • Supports local and cloud ASR, translation, voice cloning, and dubbing
    • Batch processing, speaker labeling, styling, burn-in, and multiple exports

    Where it doesn't

    • Optional cloud providers may add usage charges
    • Desktop workflow may not suit browser-first teams
    • Advanced features may require technical configuration of models or providers
  • SRTGen7.5/10 · Free plan · paid from $8/mo

    A broad caption workflow with a free tier, $8 entry plan, and API access on higher tiers.

    Visit SRTGenFull verdict →
  • SmartSub7.4/10 · Free plan

    A free local-first captioning toolkit with broad AI, editing, translation, and dubbing features.

    Visit SmartSubFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update