A full visual refresh with four themes, much more accurate grammar detection, smarter furigana, and a richer word card. Plus our new home: bunsense.app.
New
Four themes — 和紙 · 生成 · 淡墨 · 夜 (dark), each with its own paper-and-ink palette
Grammar level filter — hide patterns below your JLPT level
Furigana colour presets + custom colour picker
Redesigned word card — pitch-accent chart, JLPT level, senses in your language
Improved
Grammar detection rebuilt: far fewer wrong matches, better coverage
Furigana reads counters and tricky compounds correctly
A dedicated Contact tab and toolbar popup, color-coded grammar highlighting in the page, smarter furigana for tricky readings, and faster grammar analysis — especially for Chinese-locale users.
Contact / Feedback
New
Contact tab in the sidebar — Dedicated tab (envelope icon in the side rail) with a clean form: pick a topic (Bug / Wrong furigana reading / Feature request / Other), optional reply email, comments. Submit opens your chosen mail service in a new tab with the message prefilled.
Send via dropdown — Choose Gmail (default), Outlook, Yahoo Mail, your default mail app, or copy to clipboard for any other service.
Auto-attached context — Page URL, browser, and BunSense version are added to the message so reports are immediately actionable.
Toolbar popup
New
One-click sidebar visibility toggle — Click the BunSense icon in the Chrome toolbar for a small popup with a "Show sidebar on pages" toggle. Hide the in-page sidebar handle entirely and bring it back any time.
Quick "Open sidebar on this page" — Jump straight into the sidebar without scrolling for the handle.
Furigana
Improved
Smarter readings in context — Counter words and other context-sensitive readings now resolve more accurately.
Grammar (sidebar overlay)
New
Color-coded highlights in the passage — Detected patterns are marked directly in the selected text with a colored underline and a numbered badge that matches the corresponding card in the overlay. The pairing works on color or number, so it stays easy to follow either way.
Reading-order cards — Cards appear in the order patterns show up in the text.
Removed
Key Vocabulary section — Removed to keep the overlay focused on what works reliably.
Faster
Grammar analysis is noticeably quicker, especially for Chinese-locale users; re-running the same selection is essentially instant.
Sidebar UI
Grammar highlights work on dark pages — Underline + numbered badge stay visible against any background.
Version footer — A small "BunSense vX.Y.Z" line at the bottom of the Settings panel.
v1.1.0
Highlights
New AI Voice (TTS) feature with multiple providers, redesigned floating bar with tooltip navigation, and improved overlay behavior.
Voice (BETA)
New
AI Voice — Listen to selected Japanese text read aloud with natural AI voices
Providers — OpenAI TTS, Google Gemini, and Azure Speech Service
Default voice — Built-in browser speech synthesis
Voice settings — Dedicated Voice section in sidebar to choose provider, voice, and model
Play / Pause / Resume — Full playback control from the floating bar voice panel
Floating Bar
Redesigned
Tooltip navigation — Hover over icons to see feature labels; clean icon-only look when idle
Persistent bar — Floating bar stays visible while overlays (Translate, Grammar, Dictionary, Voice) or Settings are open
Toggle overlays — Click a feature button again to close its overlay (consistent across all features)
Fixes
No more flash — Fixed the bar briefly flashing when closing overlays or clicking sidebar icons
Branding icon — Fixed floating bar disappearing after clicking the branding icon
Password autofill fix — API key inputs no longer trigger browser password manager popups on websites
Overlays & UI
Voice panel — Inline overlay for switching between Default / AI speech with a close button
Visual polish — Improved icon sizing, spacing, padding, and overall floating bar balance
v1.0.1
Highlights
Improvements to AI API speed, floating bar behavior, furigana robustness, and overlays.
AI Chat
Performance
API speed — Faster responses from AI providers with streaming mode
New & Updated
Models — Updated to newer AI models
Floating Bar & Selection
Japanese-only activation — Bar shows only on Japanese text/sites; Users can also choose to enable/disable Floating Bar in Settings
Furigana
Fixes
Furigana showing up twice — Fixed re-applying furigana when it was already applied
Toggle furigana off — Re-select text that already has furigana and click Furigana again to remove it
New & Updated
Chunk-by-sentence processing
Reading corrections
Overlays & UI
Window cut off — Fixed dictionary and other overlays being cut off at the viewport edge
v1.0.0
Highlights
Initial release of BunSense: a Chrome extension to learn Japanese with translation, furigana, grammar analysis, dictionary lookup, and AI-assisted chat.
Translation
Translate — Default translation for selected Japanese text (free tier)
AI Translation — Optional: use OpenAI, DeepSeek, or Claude for translations
Target languages — English, 简体中文, 繁體中文
Furigana
In-page annotations — Hiragana readings above kanji
Customizable color — Set furigana color in Settings
Furigana size — Adjust reading size above kanji
Grammar & Dictionary
Grammar analysis — Analyze verb forms, parts of speech, transformations
JLPT grammar database — Bundled JLPT grammar patterns with meanings
Key Grammar (AI) — AI extracts key grammar points from the selected sentence
Dictionary lookup — Display word definitions, readings, JLPT Level and pitch accents
Floating Bar & Sidebar
Floating bar — Appears on text selection: Translate, Furigana, Dictionary, Grammar, Explore Icon
Sidebar — Chat, Notebook, Settings with configurable position (left/right) and panel width
Explore Icon — Opens sidebar with selected text as context for AI chat
AI Chat
Providers — OpenAI, DeepSeek, Claude
Contextual prompts — "What does this mean?", "Key grammar", "More casual", "More formal"
Free chat — Ask anything about Japanese
Notebook
Save items — Vocabulary, grammar, or sentences from selected text