Modern online PGN editor

Online PGN Editor for Chess

Edit PGN files online with ChessFlare's modern chess PGN editor. Import, organize and export your games or opening repertoires, analyze positions with Stockfish, visualize variations in a clear move tree, and continue your study on desktop or mobile with cloud sync.

Import and export PGN filesClear PGN move treeStockfish analysis directly in the editorWeb and mobile cloud sync
The problem

Traditional PGN editors slow down your study

With outdated interfaces, confusing variation navigation and heavy workflows, building a clean repertoire quickly becomes painful.

Without ChessFlare

Outdated interface

Too much friction to create, read and edit your lines

Hard-to-follow variations

Branches quickly become unreadable in linear formats

Analysis separated from editing

You lose time switching between tools to verify a position

Complicated sharing

Exporting, sending and resuming work is often cumbersome

With ChessFlare

Smooth editing

Build, edit and structure your studies quickly

Readable move tree

Clearly visualize main lines and variations

Built-in analysis

Launch Stockfish directly in the editor

Cloud + mobile

Your PGN data stays synchronized between desktop and mobile

PGN editor guide

Edit, analyze and train PGNs in one workspace

ChessFlare connects the core PGN editor jobs: import, clean, annotate, analyze, organize, export, and train.

What is a PGN editor?

Create, import, edit, annotate and export chess games in PGN format, with repertoire structure and training in one workspace.

Edit PGN files online

Paste or import a PGN, clean variations, add comments, organize chapters, and keep your repertoire readable as it grows.

PGN editor with Stockfish analysis

Check lines with built-in Stockfish, compare candidate moves, and improve preparation directly from the move tree.

Opening repertoire PGN editor

Build opening repertoires by chapter, variation and idea, then turn your PGN work into training.

Repertoire builder

1Repertoire builder panel

Create and organize your repertoire in a dedicated panel: chapters, variations, annotations and clear structure.

  • Structure by chapters and variations
  • Import/export PGN
  • Organization designed for opening study
Opening repertoire PGN editor with chapters and variations
Move tree visualization

2Move tree visualization

Visualize all study branches in a tree chart to quickly understand transpositions and critical lines.

  • Readable tree chart for variations
  • Visual navigation through moves
  • Better understanding of line connections
Online PGN editor with move tree visualization on ChessFlare
Analysis + Cloud sync

3Analyze and continue your study on all your devices

Verify your lines with Stockfish. Desktop and mobile are usable separately with cloud data synchronization.

  • Built-in analysis without leaving the editor
  • Automatic cloud backup
  • Desktop and mobile independent, synchronized data
PGN editor comparison

Why use ChessFlare instead of a traditional PGN editor?

Classic PGN tools can display and edit games. ChessFlare adds repertoire structure, training, analysis, and device continuity around that PGN work.

Need
Traditional PGN editor
ChessFlare
Edit PGN
Yes
Yes
Organize repertoire
Limited
Yes
Visualize move tree
Sometimes
Yes
Analyze with Stockfish
Sometimes
Yes
Cloud sync
Rare
Yes
Mobile continuation
Rare
Yes
Spaced training
No
Yes
Why this page is different

Everything you need for a high-performance PGN editor

A visual repertoire-focused approach: build cleanly, then read possibilities at a glance.

Dedicated builder

A panel designed to build a robust repertoire.

Move tree

A clear chart to visualize branches.

Visual navigation

Spot key lines and their connections quickly.

Mobile native routine

You can maintain your opening memory even away from desktop.

FAQ

Frequently asked questions

What is the best online PGN editor?

The best online PGN editor depends on your workflow. ChessFlare is built for players who want PGN editing, repertoire organization, Stockfish analysis, move tree visualization, cloud sync, and training in one place.

Can I edit PGN files online for free?

Yes. You can start editing PGNs on ChessFlare for free. Some advanced features may require a ChessFlare Pro plan.

Can I import and export PGN files with ChessFlare?

Yes. You can import existing PGN files, structure them into studies, then export your work when you need to reuse or share it.

Can I analyze PGN files with Stockfish?

Yes. ChessFlare includes Stockfish analysis so you can check positions, compare candidate moves, and improve lines from inside your PGN workflow.

Can I use ChessFlare as an opening repertoire builder?

Yes. ChessFlare is designed to turn PGN work into opening repertoires with chapters, variations, annotations, analysis, and training.

Can I edit PGNs on mobile?

Yes. You can continue your study on mobile while your PGN studies stay synchronized with your desktop workspace.

What is the difference between a PGN viewer and a PGN editor?

A PGN viewer mainly displays games. A PGN editor lets you create, modify, annotate, organize, analyze, import, and export PGN content.

Can I use ChessFlare instead of ChessBase or Lichess Studies?

ChessFlare can replace many PGN editing and repertoire workflows when you want a web and mobile workspace focused on editing, analysis, structure, and training.

PGN Editor

Build your repertoire and visualize every possibility

Use the repertoire builder panel and move tree chart to train your openings clearly and efficiently.

Continue improving with complementary tools

Each feature helps you train a different part of your chess workflow, from review to memorization.