Flashcard & Spaced Repetition Studio

Zero-Upload

A complete, private learning studio right in your browser. From note import and card editing to spaced repetition review, quizzes, weak-point analytics, and printable study sheets.

🔒Your study data stays strictly in your browser and is never uploaded
Zero-Upload

What would you like to study?

Pick a high-quality sample deck to start in seconds, or paste your own notes.

📚 Choose from Sample Decks

🔤25 Cards

English Vocabulary (Academic & Daily)

25 high-frequency academic & professional English words with collocations

🈶25 Cards

Japanese Kanji & Idioms

25 essential Kanji, 4-character idioms, and homophones with explanations

💻25 Cards

IT Fundamentals & Security

25 core concepts in networking, cloud architectures, algorithms, and web security

🌍25 Cards

General Knowledge & Science

25 educational trivia questions in science, world geography, and history

✈️25 Cards

Travel & Daily Phrases

25 practical conversational phrases for hotels, dining, and travel

📋 Paste Existing Notes or Table

Import cards from TSV, CSV, Markdown Q&A, or JSON formats.

  • No signup required, free, zero upload — all study data stays on your device
  • Instant card generation from TSV, CSV, Markdown, or spreadsheet paste
  • Configurable Spaced Repetition (SRS) schedule for effective retention
  • Interactive quiz modes: Multiple Choice, True/False, Typing, Fill-in-the-blank
  • Printable study sheets, cut-out flashcards, and double-sided print (A4/A5/Letter)

Private, Browser-Local Learning Studio

Solasu Flashcard Studio keeps your educational materials and study logs entirely on your own device. There are no server uploads, no compulsory accounts, and no third-party tracking. All SRS interval calculations, quiz generations, and print renderings happen strictly inside your browser environment.

Start Studying in Under 30 Seconds

First-time visitors can dive right into active recall with built-in original sample decks covering English vocabulary, Japanese kanji, IT fundamentals, science trivia, and conversational phrases.

Already have notes? Simply paste raw rows from Excel, Google Sheets, TSV, CSV, or Markdown Q&A blocks to instantly generate decks without tedious manual formatting.

Transparent Spaced Repetition & Multi-Format Quizzes

The studio implements a practical spaced repetition (SRS) schedule based on standard ratings (Again, Hard, Good, Easy) without inflated pseudoscience claims.

Go beyond passive flipping: test your true retention with 4-choice multiple choice, true/false checks, typing input, and fill-in-the-blank challenges.

Weak Point Analytics, Streak Tracking, and Print Support

Automatically identifies high-lapse cards and lets you practice weak spots with a single click. Maintain your study habit with non-judgmental streak tracking and GitHub-style activity heatmaps.

Export beautiful physical flashcard cutouts, double-sided printing, or numbered fill-in worksheets with answer keys in A4, A5, or Letter paper formats.

Frequently Asked Questions

Are my study cards and notes uploaded to a remote server?

No. All cards, intervals, and study histories stay strictly inside your browser's local storage (Zero-Upload architecture). Nothing is sent to external servers.

Can I copy and paste data directly from Google Sheets or Excel?

Yes. Simply copy your two columns (term and definition) and paste them into the Quick Start or Batch Import window. The studio automatically parses tabs, commas, or markdown.

How do I backup my study progress or move to another device?

Click Backup to download a single JSON file with all your decks and learning history. You can restore it anytime on any browser. You can also share decks via encoded URL fragments or scannable QR codes.

Can I print cards or worksheets for offline studying?

Yes. The print engine formats your cards into cut-out flashcard grids, double-sided print sheets, or structured fill-in-the-blank worksheets with separate answer keys ready for browser printing or PDF export.

Is there any cost or subscription fee?

No, it is completely free to use without any registration or usage limitations.

Printable Learning & Paper Studio

Daily practice worksheets, graph paper, handwriting grids, math drills, and mazes right in your browser. 100% client-side, zero upload.

Open Printable Studio →
Mind Map & Concept Tree Studio

Structure thoughts, Markdown, meeting notes & study topics instantly. Outline editing, smart layouts, SVG/PNG export. Zero-upload, browser-only.

Open Mind Map Studio →
Writing & Text Analyzer Studio

Character & word counter, sentence structure, readability analysis, writing limit checker, and proofreading — fully in browser, zero upload.

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Document OCR & Searchable PDF Studio

Extract text from images and scanned PDFs entirely in-browser. Generate searchable PDFs with invisible text layers, review and correct OCR bounding boxes, and export to TXT, JSON, CSV, and PDF.

Start Document OCR →