EchoSubs runs 100% offline on your local machine — videos are never uploaded to any server, including ours. There is no cloud processing mode, even as an opt-in. The app uses the internet only to validate your licence; subtitle detection, AI inpainting, transcription, and TTS all execute on your CPU/GPU. This makes EchoSubs safe for NDA-protected, client-confidential, and regulated workflows where cloud SaaS is not an option.
HIGH-THROUGHPUT CONTENT PROCESSING
Global VideoContentLocalization.
A content processing system designed for repeatable, high-throughput workflows. Clean hard-coded subtitles, turn PPT or PDF slides into narrated videos, and produce multilingual outputs with Refine Skills that maintain subtitle accuracy at scale.
✓ Production-Grade Pipelines✓ AI Refine Skills✓ High Throughput
AFTER
BEFORE
What is EchoSubs?
A desktop AI app for subtitle removal, captions, and slide-to-video — all offline.
EchoSubs is a desktop AI application for macOS and Windows that removes hardcoded subtitles from videos using local AI inpainting, generates accurate captions in 60+ languages, and converts PPT/PDF presentations into narrated videos — all running 100% offline on your machine.
- Platforms
- macOS 12+, Windows 10+
- Processing
- 100% offline, no upload
- Pricing
- From $5.99/mo or $69 lifetime
- Trial
- Free with watermark
- Languages
- 6 UI / 60+ subtitle
- Licence
- One-time lifetime available
Best for
- Teams handling NDA-protected or client-confidential video content
- Creators batch-processing dozens to hundreds of videos
- Educators converting slide decks into narrated video lessons
- Localisation workflows that need multi-language subtitle generation
- Organisations under GDPR or data-residency constraints that rule out cloud SaaS
Not ideal for
- One-off subtitle removal where a free online tool is sufficient
- Workflows that need a real-time cloud API — EchoSubs is a desktop app, not a SaaS endpoint
- Live transcription — EchoSubs is built for post-production
Security & Privacy
Your videos never leave your machine.
EchoSubs is a desktop application — not a SaaS. Every operation, from subtitle detection to AI inpainting to PPT-to-video rendering, executes on your local CPU/GPU. There is no cloud upload path at all, even as an opt-in. That makes EchoSubs the only realistic option for NDA-protected, client-confidential, or regulated video work.
100% offline processing
Every frame of inpainting, every audio transcription, every TTS render runs on your CPU/GPU. Internet is only used to validate your licence.
Zero cloud upload
Source files never leave your filesystem. There is no S3 bucket, no temp-upload endpoint, no opt-in cloud mode — by design.
No telemetry on content
EchoSubs does not log filenames, durations, frame contents, audio tracks, or transcripts. Anonymous app metrics (crash, version) can be disabled.
GDPR-friendly by architecture
Because videos and subtitles never traverse our servers, EchoSubs has no controller/processor role over your content. Self-contained workflow, no DPA needed.
Technical details: Licence activation uses RSA-2048; the macOS build is notarised and runs under Hardened Runtime; the Windows build is code-signed. Source code for the local processing pipeline can be reviewed under NDA for enterprise customers — contact us for a security questionnaire.
Alternatives & Comparison
How EchoSubs compares to Veed.io, CapCut, and GiliSoft.
A quick scan of where EchoSubs wins, where it ties, and where another tool may serve you better. We try to be honest about the trade-offs — there are workflows where a free online tool genuinely is the right call.
| Capability | EchoSubs | Veed.io | CapCut | GiliSoft |
|---|---|---|---|---|
| Runs 100% offline | ||||
| AI inpainting (no blur) | ||||
| Lossless passthrough encoding | ||||
| PPT/PDF → narrated video | ||||
| Batch (folder) processing | ||||
| One-time purchase option | ||||
| No watermark on free trial |
Pick EchoSubs if…
You handle NDA-protected, client-confidential, or regulated video, run batches of 10+ files at a time, or need PPT/PDF → narrated MP4 in the same tool.
Pick Veed.io or CapCut if…
You need to clean up one or two short videos a year, the content isn't sensitive, and you'd rather not install desktop software.
Pick GiliSoft if…
You're on Windows-only and already own a GiliSoft licence — quality is decent but it re-encodes every video, costing more time and quality than EchoSubs' lossless pipeline.
Proof
Real videos, processed locally, on real hardware.
EchoSubs ships a working product, not a waitlist. Below are the only numbers we publish — we'd rather under-state and back the claim with the actual binary than oversell.
98.5%
Subtitle detection accuracy
Measured on the internal benchmark set of 200 mixed-language clips.
~2.3 min
Average per 1080p video
On Apple M2 / RTX 3060-class hardware; CPU-only is 3–4× slower.
10×
Faster than cloud tools
No upload, no queue, no re-encode — measured against Veed and Vmake on the same 5-minute 1080p clip.
Customer stories
We publish customer case studies only with written, on-the-record permission. If EchoSubs has saved your team meaningful hours and you'd be open to a short quote, please get in touch — we'd love to credit you here.
Getting Started
Get your first cleaned video in under 5 minutes.
No account, no cloud upload, no waiting in a queue. Install once and you're processing on your own hardware. Here's the entire flow:
- 1
Download EchoSubs
macOS .dmg or Windows installer. No account required for the trial.
60 sec
- 2
Drag your video into the app
Drop a single file or an entire folder. Supports MP4, MKV, MOV, AVI, WebM, FLV, and more.
30 sec
- 3
Let AI suggest detection parameters
EchoSubs auto-detects the subtitle region, guesses the spoken language, and recommends an inpainting model. Accept the defaults or tweak any of them.
~5 sec, automatic
- 4
Click Remove (or Generate, or Convert)
Processing runs on your local GPU. A 5-minute 1080p video takes about 2–3 minutes on M2 / RTX 3060-class hardware.
3–5 min
Time to first result: ~5 minutes. You'll see the cleaned video appear in the same folder as the original. No account needed for the trial.
Frequently asked
The questions buyers ask before they commit.
Security, price, migration, integrations, onboarding time, trial limits, offline capability, hardware. Direct answers — no jargon, no upsell.
EchoSubs has three buying options: Pro at $5.99/month (monthly subscription), Biz at $79/month (team subscription), and a one-time Lifetime licence at $69 (no subscription, includes lifetime updates). A free trial is available with watermarked output for subtitle generation; subtitle removal and PPT/PDF-to-video require a paid licence.
There is no project file to migrate — EchoSubs works directly on your source video files. Drop your original MP4/MKV/MOV/AVI/WebM/FLV into the app and it processes them with the same AI workflow regardless of which tool you previously used. SRT or VTT caption files you already have can be loaded as a starting point for translation or as a reference for inpainting masks.
EchoSubs is a desktop application, not a cloud API. The intended workflow is local-file in, local-file out — you point it at a folder of videos and it writes results next to them. There is no Zapier, REST API, or webhook integration by design, because every supported integration would require routing content through a third-party server, which contradicts the offline-only architecture. For automation, EchoSubs exposes a command-line interface on both macOS and Windows that can be driven from your own scripts.
About five minutes from download to your first cleaned video. Step one: download the installer (~60 seconds). Step two: drag your video file into the app (~30 seconds). Step three: accept the AI-suggested detection parameters or tweak them (~5 seconds). Step four: click Remove and let the local GPU work (~3-5 minutes for a 5-minute 1080p clip). No account or sign-up is required to start the trial.
Yes. The subtitle generation feature runs in trial mode without a licence — the output carries a small watermark, useful for evaluating accuracy and language coverage before purchase. Subtitle removal and PPT/PDF-to-video features require a paid licence to run end-to-end. There is no time limit on the trial; you can keep evaluating the watermarked workflow as long as you want.
EchoSubs works fully offline once you have activated your licence. After the one-time online activation step, you can disconnect from the internet entirely and continue processing videos indefinitely — the AI inpainting models, transcription models, and TTS voices are all bundled with the app and run on your local hardware. Periodic licence re-validation happens silently in the background when the internet is available, but never blocks active processing.
EchoSubs runs on any macOS 12+ or Windows 10+ machine, but speed is GPU-bound. On Apple M1/M2/M3 or an NVIDIA RTX 3060-class or better GPU, a 5-minute 1080p video processes in about 2 to 3 minutes. CPU-only machines work too, but are 3 to 4 times slower for the AI inpainting step. There is no minimum RAM requirement beyond what the OS itself needs — the app streams frames rather than loading the whole video into memory.
Core Processing Modules
Four deterministic pipelines designed for throughput — automate what doesn't require human judgment.
View Hard-Sub Removal
🛠️
Hard-Sub Removal
Unlock existing video constrained by hard-coded subtitles. Remove embedded text directly from the video image, producing clean footage ready for re-subtitling or re-voicing in any language.
View Presentation to Video
⚡
Presentation to Video
Treat PPT and PDF conversion as a deterministic process. Extract structure, generate narration, and assemble video output — ideal for lectures, training, and standardized communications.
View AI Refine Skills
🌍
AI Refine Skills
Go beyond single-pass transcription. Refine Skills apply structured post-processing to improve timing alignment, sentence boundaries, and consistency — maintaining subtitle quality across long-form content.
View Multilingual Localization
🎬
Multilingual Localization
Produce additional language versions through configuration, not reconstruction. Combined with Refine Skills, subtitle quality remains stable across languages and long durations.
Plans for Every Creator
MonthlyYearly (Save 29%)
Free
$0/mo
- ✓ 30 minutes/mo subtitle duration
- ✓ Basic background themes & voice library
- ✗ Watermarked Export
- ✗ No AI translation or subtitle refinement
- ✗ No AI processing
- ✗ No Hard Sub Removal
LIFETIME DEAL
Standard
$69/life
- ✓ 5 hours/mo subtitle duration
- ✓ Basic background themes & voice library
- ✓ No Watermark
- ✓ Hard Sub Removal
- ✗ No AI translation or subtitle refinement
- ✗ No AI processing
MOST POPULAR
Pro Creator
$49/year$169
Ends Dec 31, 2026
- ✓ 30 hours/mo subtitle duration
- ✓ More background themes & voice library
- ✓ No Watermark
- ✓ Hard Sub Removal
- ✓ AI translation/refinement included (3 hours)
- ✓ 3 hours/mo AI processing
Business
$669/year$948
- ✓ Unlimited subtitle duration
- ✓ More background themes & voice library
- ✓ No Watermark
- ✓ Full Feature Unlock
- ✓ AI translation/refinement (15 hours)
- ✓ 15 hours/mo AI processing
🪙 Token Credits
Pay-as-you-go packs for extra AI generation time. Enhance your plan with extra token credits.
Mini
$9
2 Hrs AI
Standard
$29
10 Hrs AI
Agency
$99
50 Hrs AI & 20 hours of video subtitling
CUSTOMER FEEDBACK
Used by teams that need video work to move faster
A few notes from creators, training teams, and agencies who use EchoSubs in their day-to-day editing work.
I mainly use EchoSubs for older videos that already have burned-in captions. It saves me from rebuilding the whole edit, and the local processing makes it practical for long files.
Maya Chen
YouTube educator
Hard-sub cleanup for course clips
Our training slides used to sit in folders for months. Now we can turn a deck into a narrated video without sending internal material to another website.
Daniel Brooks
Learning operations manager
Offline PPT to video workflow
The biggest change for us is batch work. We can queue client videos, check the results in the morning, and only spend time on the clips that need a manual pass.
Sofia Ramirez
Localization producer
Batch subtitle processing
OUR VISION
Local-first processing
for global content
Why EchoSubs Is Different
01
Local Execution by Design
All processing runs locally on your machine. No cloud uploads, no queue delays, no network dependency. Content control and operational stability are built into the architecture.
02
Refine Skills for Accuracy
Subtitles aren't one-pass outputs. Refine Skills apply structured post-processing to fix timing drift, sentence boundaries, and context errors — especially critical for long-form content.
03
Throughput, Not Timelines
Not a traditional video editor. EchoSubs processes presentation-to-video conversion, subtitle removal, and localization as structured pipelines — often completing hours of video in minutes.
04
Enterprise-Grade Reliability
Deterministic, repeatable output. GPU-accelerated processing with consistent quality across runs — built for educators, media teams, and international operations.
01
Local Execution by Design
All processing runs locally on your machine. No cloud uploads, no queue delays, no network dependency. Content control and operational stability are built into the architecture.
02
Refine Skills for Accuracy
Subtitles aren't one-pass outputs. Refine Skills apply structured post-processing to fix timing drift, sentence boundaries, and context errors — especially critical for long-form content.
03
Throughput, Not Timelines
Not a traditional video editor. EchoSubs processes presentation-to-video conversion, subtitle removal, and localization as structured pipelines — often completing hours of video in minutes.
04
Enterprise-Grade Reliability
Deterministic, repeatable output. GPU-accelerated processing with consistent quality across runs — built for educators, media teams, and international operations.
We’re Hiring Partners
We're looking for global reseller partners, distribution channels, content studios, and integration partners to expand EchoSubs into more markets.
If your business serves creators, educators, or enterprises — let’s work together.
Contact Us
Interested in enterprise plans, partnerships, or investment?
contact@echosubs.com
Seattle, WA
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