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multranslate

v0.6.3

Published

Cross-platform TUI for translating text in multiple translators simultaneously and LLM, with support for translation history and automatic language detection.

Downloads

397

Readme

Cross-platform terminal user interface based on the Blessed library for simultaneous text translation using several popular translation sources and LLM. All sources do not require an API access token (with the exception of official OpenAI or OpenRouter). Supports automatic source and target language definition at code level between English and any of the supported languages, as well as access to translation history via SQLite (up to 500 requests, after which old records from the history are automatically cleared).

interface

Translation providers

  • Google - free and unlimited API using serverless hosted on the Vercel platform. Available for translation more than 5000 characters.
  • DeepL - free API via DeepLX using serverless hosted on Vercel platform. There are limits on the number of translation requests that can be made frequently, and there may also be a limit on the number of characters that can be used (the official limit is 5000 characters per request).
  • Reverso - the most stable, free and without any limitation on the number of characters (version on the site is limited to 2000 characters and 900 in the application, through the API can get up to 8000). Does not contain official documentation, request was received from official site via DevTools.
  • MyMemory - free and open API (limit of 500 characters per request). Supports up to 3 response options for short queries.
  • LLM - using large language models with a pre-installed system prompt for text translation or in chat mode with support for streaming responses.
    • OpenAI is the official provider of the ChatGPT model. To use, you must pass the API key via the --key parameter (has a higher priority) or use the OPENAI_API_KEY environment variable (similarly for OpenRouter).
    • OpenRouter is a universal provider that provides unified access to different models. Supports free models (e.g. DeepSeek R1), allowing you to use it without replenishing your account immediately after registration. To use, you need to pass the url and the API key via parameters or environment variables, similar to OpenAI.
    • LM Studio is an interface for running and using local models in offline mode (the API request and response scheme corresponds to OpenAI). It is recommended to choose a model pre-trained in the desired language (for example, using the translation filter on Hugging Face).

Install

Use the NPM package manager to install a stable version:

npm install -g multranslate

Or install from the GitHub repository:

npm install -g https://github.com/Lifailon/multranslate

Run the application:

multranslate

Get help:

multranslate --help

Usage: multranslate [options]

Cross-platform TUI for translating text in multiple translators simultaneously and LLM, with support for
translation history and automatic language detection.

Options:
  -V, --version            output the version number
  -l, --language <name>    Select the language: ru, ja, zh, ko, ar, tr, uk, sk, pl, de, fr, it, es, el, hu, nl,
  sv, ro, cs, da, pt, vi (default: "ru" or the environment "TRANSLATE_LANGUAGE")
  -t, --translator <name>  Select the translator: all, Google, DeepL, Reverso, MyMemory, OpenAI (default: "all")
  -k, --key <value>        API key parameter for OpenAI (high priority) or using the environment "OPENAI_API_KEY"
  -u, --urlOpenai <url>    Url address for OpenAI, OpenRouter or local LLM API (default: "https://api.openai.com"
  or the environment "OPENAI_URL")
  -m, --model <name>       Select the LLM model (default: "gpt-4o-mini" or the environment "OPENAI_MODEL")
  -e, --temp <number>      Select the temperature for LLM (default: "0.7" or the environment "OPENAI_TEMP")
  -h, --help               display help for command

To use OpenAI, you need to pass parameters to connect to API (has high priority) or use environment variables (recommended).

OpenAI

Using environment variables in Linux:

export OPENAI_API_KEY="sk-proj-..."
multranslate

You can save the environment variable for later use after reconnecting to the current terminal session.

echo 'export OPENAI_API_KEY="sk-proj-..."' >> ~/.bashrc
source ~/.bashrc
multranslate

It is recommended to make changes to the profile file through any text editor, for example, nano, so that the key content is not saved in the command history.

OpenRouter

Using the DeepSeek R1 free model via parameters:

multranslate -u "https://openrouter.ai/api" -m "deepseek/deepseek-r1:free" -k "sk-or-v1-..."

Note that the default /v1/chat/completions append path is used for all requests.

LM Studio

Using environment variables in Windows:

$env:OPENAI_URL = "http://127.0.0.1:1234"
$env:OPENAI_MODEL = "llama-3-8b-gpt-4o-ru1.0"
multranslate

Save variables in the current user's environment via PowerShell for later use:

[System.Environment]::SetEnvironmentVariable("OPENAI_API_KEY", "sk-or-v1-...", "User")
[System.Environment]::SetEnvironmentVariable("OPENAI_URL", "https://openrouter.ai/api", "User")
[System.Environment]::SetEnvironmentVariable("OPENAI_MODEL", "deepseek/deepseek-r1:free", "User")

To apply, restart the terminal.

Build

Clone the repository:

git clone https://github.com/Lifailon/multranslate
cd multranslate

Install dependencies and run the application:

npm install
npm start

Supported languages

You can change the language for automatic definition between English and any of those presented in the table below:

| Parameter | Language | | - | - | | ru | Russian (default) | | ja | Japanese | | zh | Chinese | | ko | Korean | | ar | Arabic | | tr | Turkish | | uk | Ukrainian | | sk | Slovak | | pl | Polish | | de | German | | fr | French | | it | Italian | | es | Spanish | | el | Greek | | hu | Hungarian | | nl | Dutch | | sv | Swedish | | ro | Romanian | | cs | Czech | | da | Danish | | pt | Portuguese (#1) | | vi | Vietnam (#2) |

All passed letters are analyzed to compare them between the English alphabet and the language specified in the --language parameter.

You can also use any of the translators individually by specifying the appropriate option at startup:

Hotkeys

  • Ctrl+<Enter/S> - translation of text without breaking to a new line.
  • Ctrl+V - paste text from the clipboard (defined at the code level).
  • Alt+C - copy text from the input field to clipboard.
  • Alt+<1/2/3/4/5> - copying translation results from output window to the clipboard (for each translator, the key combination is indicated in brackets), and the selected form will change its color to green.
  • Ctrl+<N/Z> - move to the previous entry in the translation history.
  • Ctrl+<P/X> - move to the next entry in the translation history.
  • Shift+<Up/Down> - simultaneous scrolling of all output panels.
  • Ctrl+<Up/Down> - scrolling the text input panel without changing the cursor position.
  • Ctrl+<Left/Right> - quick cursor navigation through phrases.
  • Ctrl+<A/E> - move the cursor to the ahead or end of text input.
  • Ctrl+<C/U/L> - clear the text input field.
  • Ctrl+W/Alt+Back - delete the word before the cursor.
  • Del/Ctrl+K - deletes one letter or character after the cursor.
  • F2 - switch to OpenAI with a preset translation prompt.
  • F3 - switch to OpenAI in chat mode.
  • Escape - exit the program.

Use the F1 key to get help on available keyboard shortcuts:

interface

Contributing

If your language is not listed or you have problems with translation, please open an issue in the Issues.

You can also offer another source for translating the text through API, which does not require an access key.

If you like to use this interface, you can make a contribution, just translate this readme file to your own language and pass it through Pull Request.

Backlog

  • Rewrite code to TypeScript.
  • Pack the application in the executable file.
  • Write tests to check the functions of translation.
  • Implement native cursor support (developments in multranslate-native-cursor).
  • Check texts for style and grammar (spelling) via LanguageTool.
  • Add support for storing and clearing history via SQLite for LLM in chat mode.

Text buffer

The Blessed library is great and has no analogues in its functionality for JavaScript or TypeScript (and even surpasses some libraries in other languages), but it is outdated (not supported since 2015) and has a number of technical limitations, for example, there is no ability to navigate the cursor in the text input field. For this reason, a mechanism for managing the input content through a text buffer was implemented, which allows you to use a custom cursor for navigation using keyboard arrows and automatic scrolling.

If you plan to use this library for similar tasks where text input is required, then add class TextBuffer and control of hotkeys (keypress) via inputBox.on() to your code. It took me several weeks to achieve full functionality for working with text, the key problem is the built-in line break (autowrap) and the shift of the custom cursor.

Over the course of daily use for 6 months, I can confirm that it works stably.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Copyright (C) 2024 Lifailon (Alex Kup)