FB2 Reader - Demo and Versions

Live demos:

• fbReader_v1.1.html
• fbReader_v1.2.html
• fbReader_v1.3.0.html
• fbReader_v1.3.1.html
• fbReader_v1.3.3.html
• fbAnalyzer_v1.0.html

Summary of differences between versions:

• v1.1:
  • First public version. Russian UI (titles, labels).
  • Per-paragraph translation via OpenRouter; model is configurable; API key stored in localStorage.
  • Caches translations locally per file/language/paragraph; basic navigation (go to #para, go to last).
  • No TTS features.
• v1.2:
  • Adds the "compare" button to compare original and translated paragraphs side-by-side. (Parallel Dialog)
  • Refinements to the translator UI and parsing. Still Russian UI.
  • Keeps OpenRouter-based translation workflow and local caching.
  • No TTS features yet.
• v1.3.0:
  • Switch to English UI and title; adds a TTS settings modal and OpenAI TTS integration (calls https://api.openai.com/v1/audio/speech).
  • Retains OpenRouter translation and local caching.
• v1.3.1:
  • Adds audio integration around paragraphs: per-paragraph TTS generation and attaching playable audio elements; introduces deterministic local MP3 filenames via buildFilename(idx).
  • UI polish and controls for language selection and TTS model/voice; stores TTS-related settings in localStorage (openai_tts_key/model/voice).
• v1.3.3:
  • Improves local MP3 handling: auto-detects and attaches existing local audio files after rendering paragraphs using a reusable Audio probe (attachLocalAudioIfPresent).
  • Robustness fixes and small UX tweaks around audio playback and error handling.

Notes:

• All versions use client-side localStorage; keys and cached translations never leave your browser except for API calls to the selected providers.
• Translation is performed via OpenRouter; TTS is performed via OpenAI where available.