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Free, open-source (MIT) AI voice studio that runs on your own computer: clone a voice from a short sample, turn text into speech with several engines and type by voice. Installers for Windows and macOS, no account needed. Vietnamese is not among the speech languages the README names.
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jasonzhu1207/zenconverter
Free, open-source (AGPL-3.0) Android app for converting files on your phone: merge, compress and password-protect PDFs, images to PDF, image formats, video compression and merging, audio extraction, subtitles and fonts. No ads, no account, processed locally. Needs Android 8.0 or newer, no Vietnamese interface yet.
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Free, open-source (MIT or Apache-2.0) PDF reader and editor in the style of Adobe Acrobat for Windows, macOS and Linux. Search, organize pages, merge and split PDFs, comments, forms, passwords and printing. Runs locally with no account or telemetry. Alpha software, no Vietnamese interface yet.
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Free, open-source Windows tool that cuts game stutter by compiling a game's shaders into the graphics driver cache before you play. Works with NVIDIA or AMD cards and DirectX 12 games (DirectX 11 on NVIDIA only). Releases are not code-signed yet; use caution with anti-cheat games.
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Free, open-source (MIT or Apache-2.0) Lightroom-style photo manager and RAW editor for Windows, macOS and Linux. Photo library, ratings, RAW development, masks, presets and batch export. Runs locally with no account or subscription. Young project, no Vietnamese interface yet.
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Free, open-source (MIT) download manager for Windows, macOS and Linux that downloads one file over several networks at once (for example home Wi-Fi plus a phone over USB). Takes direct links, magnet links and torrents, with a queue, pause and resume, speed and data limits. Currently a release candidate.