コード、データと QRツール

Barcode ジェネレーター

「Barcode ジェネレーター」はコード、データと QRに使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。

ブラウザ内で処理登録不要プライバシーの説明 ↗

Printable ASCII only, up to 80 characters.

100 px

使い方

使い方

  1. Enter ASCII text up to 80 characters.
  2. Choose the bar height, width, and whether to show the value below the bars.
  3. Generate the preview, verify the value, and download the SVG.

Code 128-B for everyday labels

This generator uses Code 128 subset B, which supports printable ASCII characters including letters, numbers, spaces, and punctuation. The checksum and stop pattern are included automatically.

SVG stays sharp at any size

The result is a vector SVG with exact bars and optional human-readable text. It can be printed or placed in a document without becoming blurry.

Local and bounded

The value is processed in your browser and never uploaded. Keep the input to 80 printable ASCII characters for a compact, scannable label.

よくある質問

あわせて知りたいこと

Which barcode format is generated?

The tool generates Code 128 subset B, a dense one-dimensional barcode for printable ASCII text.

Can I encode a URL or product code?

Yes. Short URLs, order numbers, SKU values, and other printable ASCII text work well.

Is the barcode uploaded?

No. Encoding and SVG creation happen locally in your browser.

Will every scanner read it?

Most modern scanners support Code 128, but print quality, quiet zones, contrast, and scanner configuration still affect results. Test the downloaded label before production use.