Software · Education & science

memento

An mpv-based video player for studying Japanese.

Completely free
Windows and Linux
Open source
No account

Ad-supported exit link (Clictune): an intermediate page may show for a few seconds before the official website. Direct link to the website, no intermediate page

Download from the official source

Link to the official download page, ad-supported (Clictune): an intermediate page may show for a few seconds. Direct link to the download

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub, Winget (Windows Package Manager)
License: GPL-2.0 — Open source (copyleft)confirmed by Flathub, Winget (Windows Package Manager)
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms), Winget (Windows Package Manager)
Account required: Noconfirmed by Winget (Windows Package Manager)
Credit card required: Noconfirmed by Flathub, Winget (Windows Package Manager)
Watermark: Not applicable
Ads: not documented
Platforms: Windows and LinuxEstablished by Linux: Flathub · Windows: Winget
Publisher: Ripose
Latest version: 2.0.2 (4 July 2026)
Latest activity: 4 July 2026
Source code: github.com/ripose-jp/memento

Overview

Features described in its GitHub repository: subtitles.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“Grammar aware subtitle search” — GitHub, 10 November 2026

At a glance

All of memento is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
No account needed
Commercial use allowed

About

Memento is a free and open source, mpv-based video player that makes studying Japanese easier with a built in popup dictionary, Anki integration, and more. Features: Memento uses Yomitan's dictionary format and supports all the same dictionaries Automates Anki card creation through AnkiConnect Grammar aware search matches terms in subtitles regardless of most inflections Supports mpv plugins, upscalers, and shaders Supports mpv configuration files such as input.conf for rebinding keys and mpv.conf for configuring mpv Supports streaming from many websites through youtube-dl

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 9 November 2026
Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) — 6 November 2026
Last technical check: 6 November 2026
Description from Flathub — AppStream (Flathub)

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