C2C Crochet Pattern Generator — Free Corner-to-Corner Chart Maker
Corner-to-corner crochet — C2C — is the fastest way to turn a grid into fabric: instead of working row by row, you build the picture in diagonal stripes from one corner to the opposite one, one block at a time. Each block is a ch-3 plus 3 double crochet, thick and lofty, which is why C2C blankets grow astonishingly quickly. This free C2C crochet pattern generator turns your description into the chart plus everything the diagonal construction adds: block counts per row, increase and decrease markers, and a bobbin plan for color changes.
C2C is a graphghan technique — it reads a pixel grid exactly like single-crochet graphghans and tapestry charts; only the construction direction differs. That means one chart from this generator can be worked in C2C, row-by-row sc, or tapestry: the grid does not care. This page focuses on the C2C reading — diagonals, blocks and the corner math — and the generator sizes the chart to your gauge automatically.
書いたら、そのまま編む
図柄のアイデアを説明してください
何を作りますか？
どの技法で？
1枚のグリッドに3つの編み方：C2C（かぎ編みブロックを角から角へ）、1段ごとの細編み、またはフィレ編み——チャートは同じです。
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23 件の図案
〰️ ジグザグボーダー モザイク
🔷 ダイヤボーダー モザイク
🌊 ウェーブボーダー モザイク
🏁 チェッカー モザイク
🏁 チェッカー ブランケット
🎶 シェブロン モザイク
💎 ダイヤ モザイク
💎 ダイヤ ブランケット
⭐ 星 モザイク
⭐ 星 ブランケット
❤️ ハート モザイク
❤️ ハート ブランケット
⚓ 錨 モザイク
⚓ 錨 ブランケット
🌙 月 モザイク
🌙 月 ブランケット
❄️ 雪の結晶 モザイク
❄️ 雪の結晶 ブランケット
🦋 チョウ モザイク
🦋 チョウ ブランケット
🦀 ギリシャ鍵模様 モザイク
🔺 矢ボーダー モザイク
🧿 魔除けボーダー モザイク
C2C crochet details, handled in the chart
- ✓One cell = one C2C block (ch-3 + 3 dc): block counts and finished size computed from your gauge swatch
- ✓Diagonal reading order: every row marked as a diagonal, increase rows on the way out, decrease rows on the way home
- ✓Color-change plan with bobbin counts: long diagonals list every color run so you can wind bobbins before row one
- ✓The stepped C2C edge is charted — you see the staircase boundary before you choose a border finish
- ✓Gauge-true sizing: a 60-block chart in worsted on a 5 mm hook lands near 60 inches — the generator does the math per yarn weight
How corner-to-corner crochet works (the whole technique in one paragraph)
A C2C piece starts from a single block: chain 6, double crochet into the 4th, 5th and 6th chains — that ch-3 plus 3 dc is one block, and it is the only unit you will ever make. Each row adds one block more than the last (the increase phase) as the work grows diagonally from the bottom-right corner. To join a new block to the row below, you slip stitch into the previous block's corner space, chain 3, and work 3 dc into that same corner — blocks click together like tiles. When the chart's full diagonal width is reached, every row thereafter drops one block (the decrease phase) until only the final block remains in the far corner. Increase rows and decrease rows each read one diagonal of the chart, which is why every C2C pattern tells you the block count per row: it is literally the map of where you are.
Color changes in C2C happen between blocks, not within them — which is what makes picture-C2C (graphghan style) so approachable. You carry or drop the old color at the slip-stitch join, and because each block is a self-contained unit, a color can switch for a single block without tangling the row. For big pictures with many colors, bobbins keep the strands organized: the generator's chart lists the color runs per diagonal so you know exactly how many bobbins to wind and when each one rests.
The signature C2C texture — thick, slightly lofty, with a visible diagonal grain — is denser and warmer than single crochet graphghans, and it works up roughly three times faster per square inch. The trade-off is detail: a block is chunkier than a single crochet stitch, so C2C suits bold shapes and reads-from-across-the-room designs rather than fine lettering or faces. The classic fix when a design is too detailed is mini-C2C (half double crochet blocks) — the same chart, finer grain, more rows.
What the generator does differently from a hand-drawn C2C chart
Hand-drawn C2C charts get the picture right and the diagonals wrong: color runs that split mid-block (impossible — a block is one color), row counts that do not match the diagonal arithmetic, or borders that ignore the stepped edge every C2C piece has. The generator draws charts in C2C grammar from the start — every cell is a whole block, every diagonal row reconciles its block count, and color runs never break a block in two.
Sizing is where C2C charts most often lie. Blocks are big: roughly one inch each in worsted on a 5 mm hook, larger in bulky, smaller in DK. A 60×80 chart is a queen blanket in worsted but a throw in DK — the generator's sizing notes translate block counts to finished dimensions per yarn weight, so the blanket you cast on is the blanket you planned. And because C2C grows from a corner, the chart marks the diagonal row numbers in working order (not grid rows), which is the numbering your stitch markers and row counters actually follow.
The chart speaks the same grid grammar as every charted technique on this site: one cell, one unit, reading order printed beside it. A C2C chart, a tapestry chart and a filet chart of the same motif share the identical grid — learn to read one and you read them all; only the construction method changes.
Project recipes that suit C2C
Classic first project: a 15×15-block washcloth or potholder in a single color — two evenings, and you will have the increase/decrease rhythm in your hands before any color changes join in. Second step: a two-color graphghan baby blanket, 40×50 blocks, one simple motif — the project that made C2C famous, and still its best teacher for bobbin management on long diagonals.
The signature projects: photo-style graphghan throws (bold silhouettes, team logos, monograms), seasonal blankets, and C2C pillow fronts. Picture throws live or die on contrast: two or three bold colors beat eight muddy ones, and the generator's charts preview the silhouette in the chart legend before you commit. For gifting, a 30×40-block monogram throw in washable acrylic is a weekend of stitching with heirloom results.
Yarn choices that work: smooth worsted or bulky acrylic and wool for blankets (the block texture loves a matte, round yarn); cotton for potholders and washcloths where thickness is the point. Avoid fine yarns on small hooks for full-size blankets — the block count explodes — and avoid fuzzy or haloed yarns, which blur exactly the block boundaries C2C pictures are made of. One hook size note worth keeping: going down half a hook size tightens blocks and sharpens picture edges at the cost of a slightly smaller finished size.
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Want a pattern that's exactly yours?
Describe any idea — the AI crochet pattern generator turns it into a charted pattern with verified stitch counts. Free to start, no sign-up required.
Open the Free Generator →Frequently Asked Questions
What is a C2C crochet pattern generator?
A C2C crochet pattern generator turns a text description into a corner-to-corner chart: a pixel grid where every cell is one C2C block (ch-3 + 3 dc), plus the diagonal row order, per-row block counts and color-change plan that the corner-to-corner construction requires. You describe the motif; the chart handles the corner math.
How does corner-to-corner crochet work?
C2C builds fabric in diagonal rows from one corner to the opposite one. Each block is a ch-3 plus 3 double crochet; rows grow by one block on the way out (increases) and shrink by one on the way home (decreases). New blocks attach to the row below with a slip stitch into the previous block's corner space. Every diagonal of the chart is one C2C row.
Is C2C crochet good for beginners?
Yes — the block is a single repeated unit (ch-3 + 3 dc), so the stitches themselves are beginner-level. The skills to learn are reading diagonal rows and managing increases and decreases, which most crocheters pick up within a small first project like a 15-block washcloth. Color changes and bobbins can wait until the block rhythm is automatic.
What can I make with a C2C pattern?
C2C is the classic technique for graphghan blankets — bold picture throws, monogram blankets, team-logo designs — plus pillow fronts, potholders, washcloths and seasonal wall hangings. Its thick, lofty blocks suit anything that benefits from warmth and fast coverage; fine detail like small lettering is better served by single-crochet graphghans.
How long does a C2C blanket take to make?
C2C works up roughly three times faster per square inch than single crochet. A 40x50-block baby blanket in worsted is a weekend or two for an experienced crocheter; a 60x80 queen throw is a multi-week project. Small projects like a 15-block washcloth finish in a couple of evenings.
Can I generate a custom C2C chart for free?
Yes — the generator is free every day, no sign-up needed: describe the motif you want, and the chart renders with block counts, diagonal order and a legend you can download as PDF. The same chart can also be worked in single crochet or tapestry if you change your mind about the construction.