KoloQR vs QRCodeChimp: Which QR Code Generator Fits the Job?

KoloQR is free. Codes download without an account, without a watermark and without a scan limit, and commercial use costs nothing. The trade is that the codes are static: the destination is baked into the symbol and cannot be changed after printing, and no scans are recorded. Nothing expires, because there is no subscription for the code to depend on.

Yes. The QRCodeChimp free plan listed in July 2026 includes unlimited static QR codes, 10 dynamic codes and 1,000 combined scans per month, with downloads capped at 1024 × 1024 pixels. An account is required to download anything. Paid plans start at $9.99 per month and raise the code, scan and resolution limits. Confirm current terms on the QRCodeChimp pricing page.

No. QRCodeChimp requires a signed-in account before a QR code can be downloaded, because codes are saved to a dashboard. KoloQR downloads without an account, since the file is generated in the browser and nothing is stored. If avoiding an account is the deciding factor, that is the difference in one sentence.

Not by default. QRCodeChimp downloads PNG and PDF out of the box and enables SVG per account on request through support, and its own help center notes the SVG output may not open correctly in Illustrator. KoloQR exports SVG, PDF and EPS directly. For large-format print or a print shop that asks for vector, that difference decides the workflow.

About 8.6 cm at 300 DPI. The rule is pixel width ÷ 300 × 2.54 to get centimeters, so 2048 × 2048 reaches roughly 17 cm and 4096 × 4096 roughly 34.7 cm. Beyond that a raster file softens at the module edges, which is exactly where scanning breaks. A vector file has no ceiling, so print size stops being a constraint.

Yes. KoloQR makes circular, rectangular, triangular and hexagonal codes; QRCodeChimp offers those plus a larger novelty set including hearts, animals and food shapes. Shape alone will not decide between them. The functional module grid stays square in both cases - the circle is a mask and a frame around a square symbol, never a reshaping of the data area.

It can stop resolving. QRCodeChimp pauses scans once the free plan's 1,000 monthly scans are used, and a lapsed paid account keeps only the most recent ten dynamic codes active. A printed sheet then fails through no fault of the ink. This is the structural cost of editability, and it is the strongest argument for using a static code wherever the destination is genuinely fixed.

Not directly - KoloQR generates static codes and records nothing. The practical workaround is to encode a short path on your own domain and 301-redirect it to the destination, which puts every scan in your server logs or analytics. That gives totals and referrers, not per-code geo and device breakdowns. If campaign-level reporting matters, use a dynamic platform instead.

Three causes account for most cases: the code was printed smaller than about 1 cm per 10 cm of reading distance, gloss lamination reflected the light back into the camera, or the quiet zone was clipped when the artwork was placed. Screen previews hide all three. Print one proof at full size and scan it from the real distance before approving the run.

Only to a point, and no generator can promise a safe maximum. A logo eats into error correction, which recovers roughly 30% of the symbol at level H. A logo covering under about a fifth of the area at level H usually survives, but the outcome depends on the encoded data length, the printed size and the camera. Enlarge in steps and scan-test each one.