Browser extension
crochet pattern extension
Right-click a web image to open it as an editable tapestry, filet, or overlay mosaic chart in the browser extension, then export a free PNG or PDF — processed locally, never uploaded.
Download the crochet pattern extension
Install the crochet pattern extension directly while the Chrome Web Store and Firefox Add-ons listings are in review.
The same crochet pattern extension appears in both stores once review completes.
What the crochet pattern extension does
The crochet pattern extension adds one focused action to your browser: a Create Crochet Pattern command in the right-click menu of any image. When you click it, the image opens in the extension’s own editor tab — not a redirect to this website — where the chart is generated on your machine. You can switch between Tapestry, Filet, and Overlay Mosaic, change the grid width and color count, correct single cells, and export the finished pattern without leaving the browser you are already using.
Because the crochet pattern extension reuses the exact conversion engine, validation rules, and export code of the website, the result is not a simplified lookalike. An Overlay Mosaic chart that violates the drop-stitch rules is blocked from export in the extension exactly as it is here, and a Filet chart keeps the same open-and-filled mesh convention and foundation-chain estimate.
Right-click import from almost any page
The crochet pattern extension reads the one image you selected — nothing else on the page. When the image host has not been granted access yet, the editor asks once, for that host only, and continues automatically the next time you import from the same host.
Local upload always remains available
If an image sits behind a login, a hotlink guard, or an unusual protocol, the crochet pattern extension explains why the direct import failed and offers the same manual upload path used on the website, so a protected or unsupported image never becomes a dead end.
set a practical project goal
With crochet pattern extension you can turn a clear source image into an editable stitch grid, then review the current chart before export. Name the item, the intended size, and the reason you are making it before changing a setting. A small sample, a panel, and a full blanket can use the same screen but need different choices and different checks. If a result in crochet pattern extension looks wrong, change one setting and watch how the chart in crochet pattern extension responds before adjusting anything else. What crochet pattern extension shows is a planning draft, so keep a real swatch beside the screen and compare it with what crochet pattern extension renders before you commit yarn.
use the technique limits as a check
crochet pattern extension is built to turn a clear source image into an editable stitch grid, then review the current chart before export. Keep the page within the construction rules it presents. A clear, simpler chart is usually easier to read than a detailed chart with awkward color changes, unmeasured sizing, or a technique that does not match the fabric you intend to make. Treat the first chart from crochet pattern extension as a draft: fix single cells, then check what crochet pattern extension shows after each change. Small checked steps are what make crochet pattern extension dependable, and the sample in your hands always gets the final word over what crochet pattern extension displays.
From image to pattern in four steps
Right-click the image
Choose Create Crochet Pattern from the image context menu. The extension opens its own editor tab with that image.
Allow the image host once
The extension asks for access to the image host the first time only; further imports from the same host run automatically.
Generate and edit the chart
A Tapestry preview appears immediately. Switch techniques, change grid width and colors, and correct single cells with undo.
Download PNG or PDF
Export the current, edited grid with legend, facts, and row instructions — the same files the website produces.
Why it feels native to your browser
Same engine as the website
The extension bundles the identical conversion engine, technique validation, and export code, so results match the website for the same image and settings.
Local, private processing
Images are decoded and converted in your browser. Nothing is uploaded, no telemetry is collected, and no account is required.
Minimal permissions
Only contextMenus and storage are requested at install; image-host access is optional and granted per host by you.
Upload fallback built in
Protected or unsupported images explain the failure and switch to the manual upload path instead of dead-ending.
How to use the crochet pattern extension
Using the crochet pattern extension takes four steps. Install it from the Chrome Web Store or Firefox Add-ons, right-click a suitable image, grant access to that image host when asked, and wait for the Tapestry preview to appear. From there you adjust the technique and parameters, edit cells, and download the pattern.
Choose an image that survives reduction
The same advice as on the website applies to the crochet pattern extension: clear shapes, strong contrast, and a tightly cropped subject produce charts you can actually crochet. Busy photographs can be imported, but they usually need a lower color count or a smaller grid to stay readable.
Edit and export in the extension tab
The extension editor shows the source image, the controls, the editable grid, and the chart facts side by side. Draw, erase, fill, pick colors, undo, and mirror work like the website editor, and the Download PNG and Download PDF buttons always reflect the current, edited grid.
Allow access to the image host
The first import from a host asks for permission for that host only, so the crochet pattern extension keeps image access optional. Because Chrome shows context-menu items just on sites the extension may access, the popup also offers one optional all-sites switch that makes the right-click entry appear everywhere; both grants can be withdrawn at any time from your browser’s extension settings.
start with the information you can verify
Use your own measured gauge, dimensions, source image, or existing motif instead of guessing from a photograph. Keep the units and counts consistent with the labels on this page so the result remains understandable later. Keep crochet pattern extension in that rhythm: turn a clear source image into an editable stitch grid, then review the current chart before export, then check the result against something real. When crochet pattern extension disagrees with a measured swatch, trust the swatch and correct the chart inside crochet pattern extension. After the next small test, look at crochet pattern extension again so the next decision in crochet pattern extension follows the version you actually checked.
plan materials from the current version
With crochet pattern extension you can turn a clear source image into an editable stitch grid, then review the current chart before export. Review yarn, size, count, and palette information after the last meaningful edit. Treat estimates as planning information and leave room for a real gauge sample, a border, joins, or the finishing decisions that the browser cannot measure. If a result in crochet pattern extension looks wrong, change one setting and watch how the chart in crochet pattern extension responds before adjusting anything else. What crochet pattern extension shows is a planning draft, so keep a real swatch beside the screen and compare it with what crochet pattern extension renders before you commit yarn.
Privacy and permissions of the crochet pattern extension
The crochet pattern extension processes images locally in your browser. The selected image is downloaded with host permission, decoded in the extension tab, and converted there; it is never uploaded to Crochet Pattern Works or to any third-party service. The extension keeps no browsing history, sends no telemetry, and requests only the contextMenus and storage permissions plus optional, per-host image access that you grant yourself.
Copyright remains with the owner
Importing an image through the crochet pattern extension gives you no additional rights to it. Use images you own, images you have permission to use, or public-domain sources, and check the license before selling a design derived from someone else’s artwork.
What is stored, and for how long
A pending import keeps only the image address you right-clicked, for at most thirty minutes, so the editor tab can recover it even if the browser restarts the extension process. The address is deleted as soon as the import finishes, fails, or expires. Charts live in the editor tab itself; closing the tab ends the session, so download anything you want to keep.
make one small first pass
crochet pattern extension is built to turn a clear source image into an editable stitch grid, then review the current chart before export. Choose a modest grid, count, or sample value first. A controlled first pass makes it easier to see which part of the result follows the real project and which part should be adjusted before more yarn or time is involved. Treat the first chart from crochet pattern extension as a draft: fix single cells, then check what crochet pattern extension shows after each change. Small checked steps are what make crochet pattern extension dependable, and the sample in your hands always gets the final word over what crochet pattern extension displays.
keep a readable working record
Write down the yarn, hook, gauge, dimensions, and decisions you want to repeat. Local browser state can be useful while you work, but a project you care about should also have a separate record or export you can find later. Keep crochet pattern extension in that rhythm: turn a clear source image into an editable stitch grid, then review the current chart before export, then check the result against something real. When crochet pattern extension disagrees with a measured swatch, trust the swatch and correct the chart inside crochet pattern extension. After the next small test, look at crochet pattern extension again so the next decision in crochet pattern extension follows the version you actually checked.
The same three techniques as the website
A crochet pattern extension import can be generated as Tapestry for multicolor colorwork, Filet for open-and-filled mesh, or Overlay Mosaic for the validated two-color convention. Grid widths from 8 to 160 cells, the JPG, PNG, and WebP input formats, and the ten-megabyte upload limit all match the website, so your habits transfer directly.
Tapestry for colorwork images
Photographs, logos, and illustrations with a handful of color areas work best as Tapestry charts, where every cell becomes one stitch and the palette stays countable.
Filet for silhouettes and lettering
High-contrast line art, monograms, and lettering convert cleanly to the Filet mesh, with the same threshold and invert controls as on the website.
Overlay Mosaic with export validation
Two-color geometric motifs can be generated as Overlay Mosaic charts; the extension refuses to export a chart whose drop-down stitches break the construction rules until you correct the flagged cells.
read the current result instead of an old plan
With crochet pattern extension you can turn a clear source image into an editable stitch grid, then review the current chart before export. Use the values, cells, instructions, and material information currently shown by the tool. When you alter an input or edit a cell, the current screen is the source to review rather than notes taken before the change. If a result in crochet pattern extension looks wrong, change one setting and watch how the chart in crochet pattern extension responds before adjusting anything else. What crochet pattern extension shows is a planning draft, so keep a real swatch beside the screen and compare it with what crochet pattern extension renders before you commit yarn.
export only after the final review
crochet pattern extension is built to turn a clear source image into an editable stitch grid, then review the current chart before export. Use the current chart or result when you save a PNG or PDF that the page offers. Before downloading, scan the visible cells, instructions, palette, and measurements so the file reflects the project you intend to crochet. Treat the first chart from crochet pattern extension as a draft: fix single cells, then check what crochet pattern extension shows after each change. Small checked steps are what make crochet pattern extension dependable, and the sample in your hands always gets the final word over what crochet pattern extension displays.
Honest limits of the crochet pattern extension
The crochet pattern extension does not work on every image on every site. Login-protected galleries, hotlink-protected hosts, and images embedded through blob or data addresses cannot be imported directly, and CSS backgrounds are not right-click targets. In each of those cases the extension says so plainly and points to the manual upload. It also cannot check your tension or measure your yarn: a gauge swatch remains the authority for finished size and material quantities, exactly as on the website.
check the physical sample
A browser calculation or grid can guide a decision, but it cannot replace a measured swatch or a small worked sample. Compare the output with real stitches before treating a size, color boundary, or yarn estimate as final. Keep crochet pattern extension in that rhythm: turn a clear source image into an editable stitch grid, then review the current chart before export, then check the result against something real. When crochet pattern extension disagrees with a measured swatch, trust the swatch and correct the chart inside crochet pattern extension. After the next small test, look at crochet pattern extension again so the next decision in crochet pattern extension follows the version you actually checked.
treat the result as a planning aid
With crochet pattern extension you can turn a clear source image into an editable stitch grid, then review the current chart before export. The page can organize decisions, but it cannot inspect tension on your hook, a substituted yarn, or every construction method. Use its output alongside your own sample and adjust the plan when the fabric tells you something different. If a result in crochet pattern extension looks wrong, change one setting and watch how the chart in crochet pattern extension responds before adjusting anything else. What crochet pattern extension shows is a planning draft, so keep a real swatch beside the screen and compare it with what crochet pattern extension renders before you commit yarn.
Questions about the crochet pattern extension
The crochet pattern extension is free, requires no account, and works offline once installed. It is published for Chrome and Firefox from the same code base, supports English and German, and links back to this page and the website tools from its editor. If a store listing is not yet visible in your region, the listing may still be in review; the website tools above remain fully available in the meantime.
adjust only the part that needs attention
crochet pattern extension is built to turn a clear source image into an editable stitch grid, then review the current chart before export. Change one input, color, dimension, or cell group at a time and review the updated output. This makes cause and effect clear and avoids losing the useful version of a project while trying several changes at once. Treat the first chart from crochet pattern extension as a draft: fix single cells, then check what crochet pattern extension shows after each change. Small checked steps are what make crochet pattern extension dependable, and the sample in your hands always gets the final word over what crochet pattern extension displays.
choose the next useful action
When the result is clear, either make a short sample, refine the current grid, or save the checked version. A deliberate next action is more useful than repeatedly changing settings without comparing the output to the actual project. Keep crochet pattern extension in that rhythm: turn a clear source image into an editable stitch grid, then review the current chart before export, then check the result against something real. When crochet pattern extension disagrees with a measured swatch, trust the swatch and correct the chart inside crochet pattern extension. After the next small test, look at crochet pattern extension again so the next decision in crochet pattern extension follows the version you actually checked.
Frequently asked questions
Does the crochet pattern extension upload my images?
No. The selected image is downloaded to the extension tab with your permission and processed locally in the browser. It is never sent to Crochet Pattern Works or any third party.
Why does the first import ask for permission?
Browsers require an explicit grant before an extension can read content from a host. The crochet pattern extension requests the host of the image you right-clicked, and the popup offers one optional all-sites switch because Chrome hides context-menu items on sites without access.
Which images work with the extension?
Publicly reachable JPG, PNG, and WebP images up to 10 MiB work for direct import. Login-protected, hotlink-protected, blob:, data:, or CSS-background images fall back to manual upload.
Do extension charts differ from website charts?
No. The extension runs the same engine and the same technique rules, including the Overlay Mosaic export validation, so identical inputs and settings produce identical charts and exports.
What happens when I close the editor tab?
The chart session ends with the tab, and the temporary import record is deleted. Download the PNG or PDF of any version you want to keep before closing.