VastNextLexiLayer
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Next-Gen Web Translation Tailored by You.

No sign-up. Free translation. Deep AI context & custom expert personas.

Break language barriers effortlessly. LexiLayer brings contextual AI translation, bilingual dual-view reading, custom system prompts, and your own API keys directly into your browser with zero friction.

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No Sign-up Required100% Free & Open SourceCustom AI PersonasUse Your Own Key
🔒 https://findryai.com
LexiLayer bilingual translation on the findryai.com homepage
Bilingual Context Engine ActiveReal-time contextual translation active on live web pages

Why LexiLayer

Built for Clarity, Freedom, and Control

Standard web translators produce stiff, word-by-word outputs with strict paywalls. LexiLayer is crafted around privacy, deep intelligence, and complete user ownership.

⚡

Zero Login Friction

Install and start translating immediately. No VastNext account or phone verification is required.

🧠

Context-Aware AI

Powered by advanced LLMs to grasp nuances, technical terminology, idioms, and full-page discourse context.

🎭

Custom AI Personas

Switch between academic researchers, software engineers, literary translators, or casual colloquial tones.

🛠️

Total Customization

Connect an OpenAI-compatible AI service using your own private API key.

Immersive Reading

Full-Page Bilingual Translation

Read side-by-side without losing the original layout

Transform complex foreign articles into smooth bilingual reading experiences. LexiLayer preserves the original web structure, code blocks, and styling while rendering clear, fluent target text right alongside.

  • Parallel bilingual inline paragraphs
  • Preserves code snippets, formatting & math formulas
  • Fast incremental DOM translation for dynamic sites
  • Instant toggle between bilingual and single view
LexiLayer v0.7.1
LexiLayer full-page bilingual translation of the NotebookLM page on findryai.com
Instant Interaction

Selection Translation & Floating Card

Select any text snippet for immediate deep insight

Highlight any unfamiliar word, paragraph, or code comment on any web page. The interactive floating card provides instant definitions, phonetic guides, contextual translations, and grammar breakdowns.

  • Trigger on selection or dedicated keyboard shortcut
  • Draggable and resizable floating popup card
  • Detailed grammatical and contextual analysis
  • One-click copy of translated snippet
LexiLayer v0.7.1
LexiLayer selection and hover translation popup card
Persona Engine

Configurable AI Experts & Prompts

Tailor translation tone to your exact domain

Translation is never one-size-fits-all. Configure specialized AI personas—such as Academic Research Specialist, Senior Software Engineer, Legal Consultant, or Literary Polisher—with tailored system prompts.

  • Built-in presets for tech, science, finance, and casual reading
  • Create and save unlimited custom AI expert prompts
  • Domain-specific vocabulary preservation rules
  • Custom prompt engineering for tone, formality, and style
LexiLayer v0.7.1
LexiLayer options page showing AI expert persona configurations
Privacy & Control

Use Your Own AI Models & Private Keys

Connect your own API key directly. No middleware platform markup

Take full control over your translation setup and privacy. Connect your own OpenAI-compatible AI service or local endpoint, and keep your API key stored locally in your browser.

  • Requests go directly to the endpoint selected in your configuration
  • Support for any OpenAI-compatible API endpoint
  • Choose the model and endpoint supported by your AI provider.
  • Local endpoints are supported when they expose an OpenAI-compatible API.
LexiLayer v0.7.1
LexiLayer custom AI provider and API key settings
Effortless Control

Streamlined Browser Popup Controls

Switch languages, models, and modes in a single click

The clean popup interface gives you instant access to your active translation engine, target languages, active expert personas, and translation triggers without digging into complex menus.

  • Quick switch between auto-translate, selection-only, and manual
  • Rapid target language and persona switcher
  • Status indicators for API latency and model connection
  • Lightweight and optimized for minimal memory footprint
LexiLayer v0.7.1
LexiLayer browser popup interface with translation controls

Real-World Scenarios

Tested in Demanding Technical Workflows

From keeping up with cutting-edge AI breakthroughs to reading international research papers, LexiLayer is engineered for high-density knowledge workers.

AI Engineer / Researcher

AI & Tech Research

Effortlessly digest the latest whitepapers on findryai.com and arXiv with precise technical terminology retention.

Developer / Contributor

Open Source Exploration

Read foreign GitHub issues, pull request discussions, and API documentation directly within the code context.

Analyst / Lifelong Learner

Global News & Analysis

Browse international industry insights in dual-language mode to absorb nuances and improve language proficiency.

Live Tested on Real Web Environments

Experience seamless translation on dynamic modern platforms like findryai.com, GitHub documentation, arXiv preprints, and developer blogs.

Explore Live Website (opens in a new window)

Free & Open Source

Community Driven, Open by Design

LexiLayer is shared in its GitHub repository so users can inspect the project, report issues, and help shape what comes next.

Open Source

Transparent & Free Forever

Review the project on GitHub, report problems, and help shape the next release.

GitHub repositoryTypeScriptUser-controlled setup
View Repository (opens in a new window)Feedback & Bug Reports

Submit Issues & Requests

Encountered a site layout bug or have an idea for a new AI persona? Open an issue on GitHub to shape the roadmap.

Bug ReportsFeature RequestsActive Triage
Browse Issues (opens in a new window)Code Contributions

Contribute Pull Requests

Join developers worldwide to add new translation engines, UI localizations, prompt presets, and performance optimizations.

PRs WelcomePrompt PresetsEngine Adapters
Browse Pull Requests (opens in a new window)

Start Translating Smarter

Your Translation Tool, Fully Tailored By You.

Install LexiLayer, plug in your preferred AI model, customize your expert personas, and read the global web without friction.

Star & Download on GitHub (opens in a new window)View Open Issues (opens in a new window)

Free to use · GitHub repository · No registration required