shapecatcher.com

Draw the character you need in Shapecatcher's drawing box, click Recognize, and the tool returns the most similar Unicode glyphs from its database of 11,817 characters. This works when you know what a symbol looks like but not its name or code point — and when the character falls within the tool's supported Unicode blocks. Chinese, Japanese, and Korean characters are not yet supported, so CJK searches will fail even if you draw them accurately.

Step-by-step: drawing and recognizing a character

1. Open shapecatcher.com. The drawing box ("drawbox") is the main workspace.
2. Draw your character by clicking and holding the left mouse button while moving the cursor. Add as many strokes as the character needs.
3. Use the Fill tool to fill in solid areas and Erase to remove mistakes. Clear wipes the canvas and the results.
4. Click Recognize to run recognition. The tool compares your sketch against its glyph database and lists the closest matches.
5. Pick the character you want from the results. If nothing matches, adjust the drawing and recognize again.

The expected result is a ranked list of visually similar Unicode characters. Recognition is shape-based, so stroke order and exact proportions matter less than overall form — but a rough or ambiguous sketch will produce poor matches.

What the database covers — and what it doesn't

The author notes that the recognition algorithms could handle many more characters and that the database may be extended in the future. The CJK gap exists because a suitable free CJK font hasn't been integrated yet — Google's Noto family (Apache 2.0 license) is named as a candidate, but inclusion is still a plan rather than a feature. If you need to confirm whether a specific block is covered, check the Unicode list linked from the site.

When your character isn't found

Work through these causes in order:

• The character isn't in the database. Only glyphs from free Unicode fonts are included, so some characters simply aren't there yet.
• It's a CJK character. These are excluded entirely for now.
• The drawing wasn't precise enough. The site's own advice is to draw as precisely as you can and try again. Recognition quality depends on how closely your sketch resembles the glyph.
• The recognition engine is offline. A "Bad Gateway" error means the engine can't be reached or is temporarily down. Wait and retry; the site invites email reports about outages.

If results are consistently disappointing for a character you believe should be supported, the author asks for an email describing the case.

Practical tips for better matches

• Draw the character large enough to fill a good portion of the box — small sketches lose distinguishing detail.
• Use Fill for characters with solid regions (blocks, filled circles) rather than scribbling over them.
• Keep the sketch clean: erase stray strokes before recognizing, since extra marks count as part of the shape.
• If the first result list is close but wrong, refine one feature at a time (a curve direction, a crossbar position) and recognize again.

Related tools and alternatives

Shapecatcher is specifically for finding Unicode characters by shape. If your goal is LaTeX commands for special symbols, the site points to Detexify instead. For other drawing-based tools, the approach differs by purpose — for example, MinecraftShapes.com generates pixel shapes for Minecraft builds, and Sketchful.io is a multiplayer drawing game — so match the tool to whether you need a character code, a build pattern, or entertainment.

MinecraftShapes.com is a browser-based shape generator that turns geometric forms—lines, triangles, pentagons, hexagons, octagons, circles, and more—into pixel grids you can copy into Minecraft. To use it, open the site with JavaScript enabled, pick a shape, set your coordinates or side count, tune thickness and fill, then export as SVG, PNG, or pixel data (or copy a permalink to save the design). It's built for players who want regular, symmetrical footprints rather than freehand pixel art.

Before you start

• JavaScript must be on. The page states plainly that the shape generator requires JavaScript; with it off, nothing will render.
• Know your footprint. Decide roughly how wide and tall the build should be in blocks before you start, since coordinates and side counts drive everything else.
• Have a way to use the output. You can download SVG or PNG, copy pixel data, or copy a permalink. The site does not describe a direct in-game import, so plan on reading the grid and building to it.

Step-by-step: generate a shape

1. Choose the shape type

The shape menu includes:

• Line (A to B)
• Equilateral Triangle
• Quadrilateral
• Pentagon
• Hexagon
• Septagon
• Octagon
• Nonagon
• Decagon
• Dodecagon
• More sides…
• Circle (Ellipse)
• Angle

For a build footprint, polygons and circles are the usual starting points; Line and Angle are better for paths, walls, and roof slopes.

2. Set the geometry

Depending on the shape, you'll work with some combination of:

• Start coords (x, y) and End coords (x, y) for lines and angles
• Sides for polygons
• Top width, Diameter, Height for sizing
• Skew, Angle, Rotation to tilt or orient the shape
• 2×2 centre with a "try to force" option to align the shape on an even grid

Enter values, and the diagram updates. The expected result is a pixel pattern with the symmetry you'd expect from a regular polygon.

3. Refine the pattern

Use the extras and display controls to match your build:

• Extras: Stars, radii, etc. — adds stellations (star shapes made by joining vertices in different orders, shown as {7/3}-style notation) and radius guides.
• Thickness: thin / thick / filled — thin gives an outline, filled gives a solid footprint. The FAQ suggests two routes to "thicc" shapes: make a thin shape and thicken it until satisfied, or stack multiple thin shapes of different radii around the same centre.
• Force circle — pushes the result toward a circular outline.
• Block count — shows how many blocks the shape covers, useful for estimating material needs.
• Show coords (and crosshairs) — overlays coordinates on the grid so you can read positions while building.

4. Navigate and mark the diagram

• Scroll or pinch to zoom, click and drag to pan.
• Right-click or long-press a square to highlight it and mark your place—handy for tracking a corner or centre while you build.
• Highlights: Clear / Copy and the arrow keys help you manage and step through marked cells.
• Set coords / Set all cell coordinates let you lock in positions precisely.

5. Export or save

• Download: SVG / PNG / pixels — SVG for scaling and printing a plan, PNG for a quick reference image, pixels for the raw grid data.
• Copy permalink — saves the exact configuration in a URL so you can reopen or share the design.

Why shapes can look "wonky" or circle-like

Two behaviors are worth knowing before you assume something is broken:

• Line direction matters. The FAQ explains that because of how rasterized geometry works, the direction you draw a line changes the pixel result. The site enforces symmetry where you'd expect it in regular polygons, so small asymmetries in lines are normal—but if you believe something is genuinely wrong, the site invites you to get in touch.
• High side counts approach a circle. The more sides a polygon has, and the shorter each side is, the lower the definition—so a many-sided polygon can be hard to distinguish from a circle at small sizes. If you need a visibly polygonal look, keep the shape large enough that individual sides read clearly.

Quick reference

Common snags

• Nothing renders. Check that JavaScript is enabled—this is the most likely cause per the site's own notice.
• Shape looks lopsided. Confirm you're using a polygon type rather than a line, and check rotation/skew values; the site guarantees symmetry for regular polygons.
• Polygon looks like a circle. Increase the size or reduce the side count so the edges are visible.
• Your shape isn't listed. The site says all regular polygons are implemented; for anything else, email a suggestion—updates happen when the developer has time, so don't expect immediate additions.
• Want your build featured? The gallery accepts submissions: send a picture and the build's name.

If the tool saves you time, the site notes that donations and Patreon support keep it improving—optional, but relevant if you rely on it for large projects.

Sketchful.io is a free browser-based multiplayer drawing and guessing game — a Pictionary-style contest where players take turns sketching a word while everyone else races to type the correct guess. You play it at sketchful.io, and to join a lobby your network needs a Google account, so sign in with Google once before you start. From there you can jump into a public room or create your own with custom rules.

How a Round Works

The game runs in rounds. Each round, one player is given a word to draw and a countdown timer; everyone else types guesses into the chat. The faster you guess, the more points you earn, and the drawer scores when people guess their word. After the drawing time runs out or the word is guessed, the next player takes a turn.

The default room settings shown in the lobby are:

Getting Into a Game

1. Open sketchful.io in your browser.
2. Sign in with Google when prompted — the site states your network needs a Google account to join a lobby, and one sign-in is enough.
3. Join a public lobby, or create your own room and share the room link with friends so they can join.
4. When it's your turn, draw the word shown to you. When it isn't, type guesses as fast as you can.

If you create a private room, only people with the link can get in, which is the usual way to play with a specific group.

Drawing Controls

The in-game tutorial lists these controls:

• F — flood fill
• B — brush
• E — erase
• C — clear
• Z — undo
• Mouse wheel — change brush size

There's also a drawing menu with Share, Download, Edit, and Delete, and a gallery you can log in to save drawings to.

Room Customization

When you host, you can set the lobby name, visibility (public or private), drawing time, max players, number of rounds, a welcome message, and the game mode. You can also load a custom word list — the site ships with themed lists such as 3–6 letter words, shapes, AI words, advanced English, and many more — or upload your own file.

House Rules and Moderation

The game asks players to follow a few basic rules:

• Don't write the word you're drawing, and don't spoil the word or type it in chat.
• Keep content PG-13 and be nice to others.
• Protect your privacy.

You can click on players to see their stats, kick them, or report them. Reports cover inappropriate drawings, chat abuse or harassment, cheating or auto-guessing, and other issues, and they send the reported player's drawing and recent chat to moderators. Reporting players and turning off the profanity filter both require logging in.

Common Snags

• Kicked for inactivity — if you stop playing, a warning appears and you'll be removed after about 15 seconds unless you confirm you're still there.
• Can't join a lobby — you likely haven't signed in with Google yet.
• Can't report or disable the profanity filter — both need you to be logged in.
• Want to keep a drawing — use Download or Save Recording from the drawing menu, or log in to save to your gallery.