ASCII Art Archive v2 – Now live with a new layout and weekly updates. Read more.
Analyze ASCII art to get detailed statistics, character frequency, density maps, and more.
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Welcome to our
ASCII Art Analyzer
- a free tool to analyze your ASCII art and get detailed statistics. Paste or upload your ASCII art to see character frequency, density maps, dimensions, and more. Perfect for artists who want to understand their creations better!ASCII Art Level
Measures complexity based on character variety, canvas density, distribution entropy, and pattern complexity. Higher levels indicate more intricate compositions.
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Detected Style
Automatically detects the artistic style of your ASCII art based on the characters used. Block Art uses solid block characters (█▓▒░). Line Art uses box-drawing characters for borders and frames. Shading Art uses punctuation and symbols for gradients. Minimalist uses very few unique characters, while Detailed indicates a rich character palette.
Character Statistics
Analyzes the distribution and variety of characters in your ASCII art. Unique Character Density shows how many different characters are used relative to total characters. Character Variance measures how unevenly characters are distributed - low variance means even usage, high variance means a few characters dominate. Entropy measures randomness/variety in bits - higher entropy indicates more diverse character usage with no dominant characters.
Character Type Distribution
Breaks down characters by type. Letters (A-Z, a-z) are common in text-based art. Digits (0-9) are sometimes used for shading. Symbols include punctuation and special characters. Whitespace counts spaces and tabs. Blocks are special Unicode block elements (█▓▒░). This helps understand the "texture" of your art.
Character Set Classification
Identifies which character encoding your art requires. Pure ASCII (codes 32-126) offers maximum compatibility across all systems and fonts. CP437 is the classic IBM PC/DOS character set with box-drawing and block elements - the traditional ANSI art standard. Extended Latin includes Western European characters (128-255). Unicode contains characters beyond Latin-1, including emojis and international scripts - may require UTF-8 encoding.
Character Frequency
Shows how often each character appears in your art, sorted by frequency. Count is the total occurrences. Total % is the percentage of all characters including whitespace. Distribution % shows the percentage among non-whitespace characters only - useful for understanding the visual weight of each character in your composition.
All Unique Characters
Displays every distinct character used in your ASCII art, sorted by category: whitespace, digits, letters, punctuation, box-drawing, block elements, and other Unicode. This palette view helps you see at a glance which characters make up your artwork and can be useful when recreating or modifying the art.
Empty Cells & Density
Analyzes how much of the canvas is filled with content. Total Cells is width × height. Empty Cells are positions with spaces or no content. Fill Ratio shows what percentage contains visible characters. Whitespace Ratio includes all whitespace in the original text. Empty Rows/Columns counts completely blank lines - useful for identifying padding or intentional spacing.
Trim Analysis
Shows the bounding box of your content - the smallest rectangle that contains all non-space characters. Margins indicate how many empty rows/columns exist on each side (top, bottom, left, right). Content Bounds shows the actual dimensions of your art without padding. This is useful for optimizing file size or centering your art.
Structure & Form
Analyzes the compositional structure of your art. Center of Mass shows where the visual "weight" is concentrated - centered art has it near 50%/50%. Horizontal/Vertical Symmetry measures how closely the left matches the right (or top matches bottom). Edge Density indicates how much detail is at the borders vs. interior. Connected Components counts separate "islands" of characters - 1 means a single connected shape, higher numbers indicate multiple distinct elements.
Density Map
A visual heatmap showing character density across your art. Each pixel represents one character cell. The color indicates the visual "weight" of that character based on how much ink/pixels it would use when rendered. Dark purple = empty or light characters (spaces, dots). Bright yellow = heavy/dense characters (█, @, #). This helps visualize the tonal distribution of your artwork.
Sequence & Distribution
Analyzes character sequences and spatial distribution. Longest Sequence finds the longest run of the same character in a row - long sequences often indicate borders or dividers. Row/Column with Most Characters identifies the densest lines. Average Characters per Row/Column shows typical line density. Max Density indicates the most packed row or column as a percentage.
Line & Pattern Analysis
Detects directional lines and repetitive patterns. Dominant Direction analyzes characters like ─│/\()[] to determine if the art flows horizontally, vertically, or diagonally. Longest Horizontal/Vertical Run finds the longest unbroken line of the same character. Pattern Score measures structural patterns like checkerboards (alternating characters), stripes (repeated rows/columns), and grids (intersection characters). Higher scores indicate more geometric/structured art.
Line Statistics
Technical information about line formatting. Line Ending shows the newline format: LF (Unix/Mac), CRLF (Windows), or CR (old Mac). Line Length statistics help identify if the art has consistent width or variable-length lines. Empty Lines counts blank lines which may be intentional spacing or padding.
Export
Export your analysis results. Copy Report copies a formatted text summary to your clipboard - perfect for pasting into documents or sharing. Download JSON saves a complete machine-readable analysis file with all metrics, useful for further processing, archiving, or comparing multiple artworks programmatically.
What is this tool?
ASCII art can look simple, but it often contains hidden structure: repeated patterns, shading techniques, and character choices that affect readability. ASCII Art Analyzer breaks your artwork down into measurable stats so you can compare pieces, optimize output, or troubleshoot formatting issues.
It’s especially useful when you’re moving art between editors, terminals, fonts, or platforms where spacing and character sets can silently change.
How to use it
- Paste ASCII art into the input box (or click Upload File to load a .txt file).
- Click Analyze to generate a full report.
- Use Copy Report to share results, or Download JSON for automated workflows.
Not sure what to test? Click Load Sample to see how the analyzer works.
What you’ll learn
- Dimensions (width/height), total characters, and whitespace density
- Character set detection (ASCII / CP437 / extended / Unicode)
- Character frequency and a list of unique characters used
- Pattern and line statistics (structure, trimming, distribution)
- An “ASCII Art Level” score to estimate overall complexity
- And much more in the full report
Common use cases
- Checking if your art is pure ASCII or includes CP437/Unicode characters
- Measuring density and whitespace for better terminal readability
- Comparing complexity between versions (before/after edits)
- Debugging trimming/spacing issues after copying between editors
- Verifying symbol usage for consistent rendering across fonts
Privacy first
This tool is built to be privacy-friendly by default:
- Your ASCII art stays on your device. Analysis is performed locally in your browser.
- We don’t need accounts or logins to use the analyzer.
- No server-side storage of your pasted content. What you paste is used only to generate the report you see.
- Exports are generated locally. When you copy the report or download JSON, it’s created in your browser.
If you’re analyzing sensitive text (logs, internal data, etc.), you can do it here without sharing the content elsewhere. The goal is simple: maximum insight, minimal exposure.