auto_videocam
SubGenius.ai
bolt Quick Transcribe
bolt Zero-Upload Engine lock Zero Cloud Video Leaks speed Sub-Second Generation

AI Subtitles Without Sacrificing Your Privacy — Or Your Sanity.

Extract audio directly on your device with our zero-upload browser engine. Your heavy video file never touches the internet — only processed audio is transcribed in milliseconds.

rocket_launch Launch Studio Free (No CC) play_circle View Live Demo
Payload Reduction
500MB → 5MB
100x Bandwidth Saved
Turnaround Time
< 8.2s
Instant Processing
Global Reach
100+
Languages Auto-Detect
Free Access
5 Mins
No Credit Card Required
compare_arrows Architecture Comparison

Cloud Video Uploaders vs. SubGenius Client Engine

Legacy subtitle tools require uploading your massive, confidential video files to remote cloud servers. SubGenius isolates audio directly in your browser with zero video cloud exposure.

dangerous Legacy Risk Vectors
cloud_off

Traditional Subtitle SaaS

Centralized Server Ingestion Pipeline

close
1GB - 5GB 4K Raw Video Upload
Consumes vast outbound bandwidth and takes 4-12 minutes on standard connections.
close
Persistent Cloud Storage Risk
Unreleased videos, internal meetings, and raw takes sit on remote cloud storage drives susceptible to leaks.
close
High Cloud Compute & Egress Tax
Users absorb bloated infrastructure fees ($0.30-$0.80/min) to subsidize multi-tenant video decoders.
Data Exposure Metric 100% Raw Media Exposed
verified Zero Data Retention
bolt

SubGenius Client Engine

In-Browser Client Acceleration

check_circle
In-Browser Local Audio Isolation
Zero bytes of video data ever leave your device. Audio isolation runs at native hardware speeds.
check_circle
Encrypted Lightweight Audio Stream
Only compressed speech tracks stream over TLS 1.3 to the nearest neural node.
check_circle
RAM-Only Transcribe & Instant Purge
Secure audio tokens convert to subtitles directly; audio instance shuts down immediately.
Video Cloud Transfer 0 Bytes (Mathematically Immune)
In-Browser Audio Isolation Simulator LIVE REPL

Proprietary client-side worker extracting high-clarity speech stream

Engine: Hardware Accelerated Privacy: Zero Video Upload
[SubGenius Client Engine v2.4] STATUS: 200 OK

> [client_engine] input: '4k_director_cut_master.mov' (2,418.42 MB)

> [audio_isolation] speech frequency separation: active (48,000 Hz)

> [privacy_guard] raw video retained in local browser memory only

> [progress] 100% extracted locally in 1.48s (Speed: 142.1x realtime)

> [encrypted_stream] speech payload: 3.12 MB dispatched to SubGenius Neural Node...

00:00.000 Active Speech Detected: 94.2% 03:14.220
Realtime Subtitle Feed STREAMING SSE
00:00:01.400 → 00:00:04.120
"Welcome to the high-performance edge computing demonstration."
00:00:04.200 → 00:00:07.850
"By keeping media processing entirely in the browser, privacy is guaranteed."
00:00:08.000 → 00:00:11.300
"The SubGenius Neural Speech Platform generates synchronized subtitles in seconds."
Encoding: UTF-8 WebVTT Copy Formatted Cue arrow_forward
hub Deterministic Flow

Engineered for Mathematical Velocity

Four lightning-fast stages bridging your browser's client engine with modern serverless AI acceleration.

01 laptop_mac

Local Ingestion

HTML5 File API securely accesses media locally. Our client-side acceleration engine isolates speech audio straight to an in-memory buffer without uploading video bytes.

Client RAM Isolation
02 router

Encrypted Stream

Compressed speech stream transfers over TLS 1.3 to the nearest secure processing node. Sub-millisecond cryptographic tokens authenticate quotas instantly without latency.

Global Neural Nodes
03 psychology

Neural Synthesis

Processed by the SubGenius Neural Speech Platform for precise timestamped cues, paired with contextual language models for dual bilingual subtitle generation.

Enterprise AI Array
04 sync_alt

Sync & Export

Tokens stream via Server-Sent Events to render in client editor. Instant export to WebVTT, SRT, JSON, or custom social styles synchronized with video playback.

Zero Server Footprint

Everything Developers Expect. Nothing Creators Fear.

code_blocks

Zero-Upload Local Engine

High-efficiency audio processing executes directly inside Chrome, Safari, or Firefox without cloud video transfer.

Client-Native Engine arrow_forward
speed

Sub-Second Edge Transcribe

No spinning spin-up containers or GPU queues. Our global neural network warms up in milliseconds, delivering transcriptions 30x faster.

Ultra-Low Latency arrow_forward
translate

100+ Language Dialects

Translate audio on the fly into Spanish, Mandarin, German, Japanese, and 90+ other idioms with high semantic precision.

Context-Aware Translation arrow_forward
file_download

Universal Subtitle Exports

Export standard .vtt, .srt, word-by-word timestamped .json, or copy formatted caption snippets.

Lossless Metadata arrow_forward
shield

Zero Logs • Zero Cookies

Designed from day one with strict confidentiality, complying with DPDP Act, GDPR, and enterprise NDA standards. In-flight streams disappear the moment the connection closes.

Cryptographic Privacy arrow_forward
terminal

Developer REST & Webhooks

Automate enterprise captioning workflows with our edge endpoint. Send compressed audio payloads directly via curl or our official TypeScript SDK.

Explore API Specs arrow_forward
palette Creator Studio Presets

8 Built-in Social Presets & Precise Positioning Controls

Tailor your subtitles for TikTok, Instagram Reels, YouTube Shorts, or cinematic documentaries. Switch typography, customize font sizes (14px–48px), choose Top/Middle/Bottom screen positioning, and activate Social Safe-Zone overlays in one click.

Minimalist Cinema Viral Creator (Yellow) Neon Cyberpunk Bold Social Documentary Classic Karaoke Groove Boxed Clarity Bottom Ribbon
aspect_ratio Custom Subtitle Styler
Studio Ready
9:16 / 16:9 Reel Safe-Zone Overlay: ON

CREATE WITHOUT BOUNDARIES

(Bilingual translation synchronized underneath)

Position: Bottom (85%) Font: 28px Outfit
translate Dual Bilingual Subtitles
tune Size & Position Controls
redeem Instant Sandbox Access

Ready for Instant, Secure AI Subtitles?

Start right now with 5 complimentary minutes. No credit card required. Experience sub-second transcription with zero data retention.

play_circle Start Transcribing Free View Transparent Pricing
check_circle No Video Storage
check_circle Client-Side Processing
check_circle No Account Needed for Demo