A Stitchist guide
Convert XXX to PEC online
Use Stitchist's free embroidery file converter to convert an existing XXX stitch file to PEC. Upload the original file, select PEC, inspect the written result and download it with a free account. Conversion changes the machine-file encoding; it does not re-digitize the artwork or rebuild stitch density.
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Same design. A new format.
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Check colors, dimensions and machine compatibility.- Input
- .xxxCompatible Singer embroidery machines
- Output
- .pecCompatible Brother and Baby Lock models
- Price
- Free converterFree account to download
- Size
- Original design sizeCheck your receiving hoop
Step by step
Start with the original file
Choose the .xxx embroidery file. Extract it first if it is in a ZIP. Keep the original extension; changing a filename is not conversion.
Select PEC
Open the Stitchist converter and choose PEC in the output selector. The link on this page selects it for you. Upload the file, then click Convert.
Inspect the converted result
Compare the displayed width, height, stitch count and color sequence. The preview is read from the written output, not just copied from the input.
Download and check at the machine
Sign in or create a free account to download the .pec file. Save it promptly: temporary results normally expire after 30 minutes and can disappear sooner after a restart. Check the file in your machine's workflow before sewing.
When to convert XXX to PEC
PEC's limited palette can change the appearance of an XXX preview. Use the original chart to choose threads, and check that the receiving machine accepts standalone PEC rather than only PES.
What your XXX file contains
XXX is a stitch-file format used in compatible Singer workflows. It can carry stitches and color information, but the supported file type and hoop depend on the model. Keep your original file when preparing an XXX copy.
XXX can carry color information. Preview the written output and compare its thread order with the original design.
What to check in the PEC result
PEC is a Brother-family stitch format, also used within PES files. Some machines and software accept standalone PEC, but PES is often the more familiar delivery choice. Use PEC when the recipient or machine specifically supports it.
Verify that the machine accepts a standalone PEC file. Do not assume that support for PES guarantees the same standalone-file workflow.
PEC uses a limited thread palette. Approximate color matches can appear even when the stitch positions and color-change order are correct.
What changes, and what does not
Stitchist converts the decoded stitch sequence. The destination format may round coordinates, split a long stitch into smaller movements, or encode trims and stops differently. A slightly different stitch count is not by itself proof of a damaged design.
The converter does not resize the design, regenerate a fill, repair weak digitizing or restore object editing. Compare dimensions and sewing order, and keep the original file as your reference.
- Compare colors after conversion and keep the original thread chart. A palette change is different from losing an entire stitched area.
- Use the machine manual to confirm format, version and embroidery-area support.
- For a design you plan to sell or repeat, test the final size on the intended fabric and stabilizer.
If the file is rejected
The input must be an embroidery file, not a PNG, JPEG, PDF or ZIP renamed to .xxx. Use Auto Digitize for artwork. If a valid original file is not recognized, provide its original format when asked or re-export it from the source software. The stitch-file upload limit is 10 MiB.
Do not cycle through unrelated source-format hints. That can decode the wrong bytes without producing a trustworthy design.
Common questions
Is XXX-to-PEC conversion free?
Will the converted file keep exactly the same colors?
Does this preserve density when I resize?
Can I convert a picture directly to PEC?
Put it into practice
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