Top 5 Free PGN Viewers for Desktop and Mobile

PGN Viewer Guide: Import, Annotate, and Share Game Files

What a PGN viewer does

A PGN (Portable Game Notation) viewer displays chess games stored in PGN format so you can replay moves, browse variations, and inspect annotations and metadata (player names, event, result, ECO codes).

Importing PGN files

1. Supported sources: local files (.pgn), clipboard text, URLs, cloud storage (Google Drive, Dropbox) or direct paste from chess sites.
2. Common steps: Open viewer → choose Import/Open → select file or paste PGN → confirm metadata parsing.
3. Tips: Ensure each game block starts with tags like [Event “…”] and moves use SAN (e.g., 1. e4 e5). For multiple games in one file, viewers typically show a games list.

Annotating games

1. Inline comments: Add move comments (e.g., “!?”, “!?”) and textual notes attached to specific moves.
2. Variations: Insert alternate lines in parentheses or via the viewer’s “add variation” UI.
3. Evaluation and engine analysis: Run a chess engine to attach numerical evaluations and suggested moves; save key engine lines as variations.
4. Best practices: Use short, focused comments (opening idea, tactical motif, turning point). Tag mistakes (blunder, mistake, inaccuracy) consistently.

Sharing and exporting

1. Export formats: Save edited PGN, export as PDF (annotated score), PNG/SVG (board diagram), or share a link if the viewer supports cloud-hosted games.
2. Embedding: Many viewers provide embed code or links for forums/blogs; some generate interactive shares for FEN or specific positions.
3. Privacy: Strip sensitive metadata (email, location) from PGN tags before sharing if desired.

Features to look for in a PGN viewer

• Move navigation, variation support, and annotation editing
• Engine integration (Stockfish or similar)
• Search/filter games, tag and sort by player/opening/result
• Export options (PGN, PDF, image)
• Compatibility with mobile and desktop, and import from cloud/URLs

Quick workflow (recommended)

1. Import PGN (file or paste).
2. Run engine analysis to flag tactical errors.
3. Add concise annotations and variations for learning points.
4. Save exported PGN and generate an annotated PDF or shareable link.
5. Archive original and annotated copies for review.

Common problems and fixes

• Broken parsing: check missing brackets or malformed SAN; reformat tags.
• Engine not running: ensure the viewer supports the engine and allocate sufficient CPU in settings.
• Multiple games not listed: confirm game separators (blank line between games) and tag headers.