Polyglot

Product Introduction

1. Definition: Polyglot is a native macOS application for local AI-powered subtitle generation, translation, and video post-processing. It operates as a comprehensive multimedia toolkit, combining the functions of a subtitle editor, transcription service, video compressor, and enhancement tool into a single, offline-first desktop application.
2. Core Value Proposition: Polyglot exists to provide content creators, educators, and professionals with a privacy-focused, one-time-purchase alternative to cloud-based subscription services for video and subtitle workflow. Its primary value is enabling high-quality subtitle creation, multi-language translation, and video optimization entirely on-device, ensuring data privacy and eliminating recurring fees.

Main Features

1. Local AI Subtitle Generation & Translation: Polyglot uses on-device machine learning models (likely Core ML-based) to transcribe audio from video/audio files into SRT or VTT subtitle tracks. A separate local translation model then converts these subtitles into over 25 target languages. This process requires an initial download of the AI models but thereafter functions completely offline, keeping all media and intellectual property on the user's Mac.
2. Centralized Subtitle File & Project Management: The app features a dedicated "Files" library and "Projects" workspace. The library allows users to search, filter by language, and perform batch operations (like translation or export) on all saved subtitle tracks. A "Project" container keeps the source video/audio file synchronized with all its associated subtitle language versions, providing a unified editing context.
3. Intelligent Video Compression & Enhancement: Beyond subtitles, Polyglot includes a video toolset. Its compression engine can process an MP4 video to a user-defined maximum file size (in MB), intelligently adjusting encoding parameters. The enhancement module offers adjustments for resolution, noise, sharpness, and motion, with optional local AI models (like SeedVR2, which requires 16GB RAM) for upscaling and quality improvement.

Problems Solved

1. Pain Point: It solves the high cost, privacy concerns, and dependency on internet connectivity associated with cloud-based transcription/translation SaaS platforms. It also addresses the fragmented workflow of using separate, often online, tools for subtitling, translation, and video compression.
2. Target Audience: Video creators (YouTubers, course instructors, indie filmmakers), podcasters needing transcripts, educators creating accessible content, corporate communications teams handling multi-language media, and any Mac user requiring reliable SRT/VTT conversion or video size reduction for sharing.
3. Use Cases: Transcribing and translating interview recordings locally for a documentary; compressing a finished tutorial video to meet a specific platform upload limit; converting a folder of legacy SRT files to VTT for web use; quickly generating a readable TXT transcript from a team meeting recording; creating bilingual subtitles for a language learning video.

Unique Advantages

1. Differentiation: Unlike Freemium cloud services (like Otter.ai, Rev) or subscription-based editors, Polyglot is a one-time purchase (€29.99 for Pro features) with permanent local processing. Compared to free online tools, it offers superior privacy, batch processing, and integrated project management. Versus professional suites like Final Cut Pro, it is hyper-specialized, more affordable, and simpler for subtitle-centric tasks.
2. Key Innovation: Its "offline-first, pay-once" architecture for AI media processing is its core innovation. By leveraging Apple Silicon's Neural Engine for efficient on-device AI, it delivers a powerful, private, and cost-effective workflow. The integration of subtitle project management with practical video tools (compression to a size limit) within a native Mac app creates a uniquely cohesive user experience.

Frequently Asked Questions (FAQ)

1. Does Polyglot for Mac work without an internet connection? Yes, Polyglot's core media processing—including AI transcription, subtitle translation, and video enhancement—runs locally on your Mac after the required models are downloaded. You need an internet connection only for the initial model download, video link imports, purchasing the Pro license, and checking for app updates.
2. What are the system requirements for running Polyglot? Polyglot requires a Mac with Apple Silicon (M-series chip) running macOS 14.4 or later, with a minimum of 8 GB of unified memory. Approximately 2 GB of storage is needed for the speech recognition model, plus an additional 5 GB for translation models. Using the SeedVR2 video enhancement feature requires at least 16 GB of RAM.
3. How does the 7-day free trial for Polyglot work? The trial begins with your first transcription or translation job and provides unlimited use of these Pro features for seven days, with no account or payment details required. After the trial, a one-time Pro purchase (€29.99) permanently unlocks transcription and translation. Features like subtitle editing, file conversion, TXT export, timing sync, and video tools remain free forever.
4. Can I use Polyglot to edit SRT files without a video? Absolutely. You can directly import SRT or WebVTT (VTT) files to edit text, adjust timings, translate, or convert formats. You can export to SRT, VTT, plain text (TXT), or bilingual subtitle files. Attaching a video is optional and is used solely for visual reference during review.
5. Is video compression in Polyglot lossless? No, compressing a video to a specific, smaller file size is a lossy process. Polyglot's compression engine intelligently adjusts video encoding parameters (like bitrate) to meet your defined maximum file size while aiming to preserve perceived quality. It always retains your original, uncompressed video file.