Vue Download __link__ File From Base64 Link
: Always call window.URL.revokeObjectURL(url) after the download triggers to free up browser memory.
const downloadBase64File = (base64String, fileName) => { const linkSource = `data:application/pdf;base64,${base64String}`; const downloadLink = document.createElement("a"); downloadLink.href = linkSource; downloadLink.download = fileName; downloadLink.click(); } Use code with caution. vue download file from base64
: The native atob() function decodes Base64 to a string. If your file contains binary data (like a PDF), you must convert that string into a Uint8Array as shown in the Blob example to avoid corrupting the file. : Always call window
: For even cleaner code, the VueUse library provides a useBase64 utility that handles reactive encoding and decoding automatically. If your file contains binary data (like a
: Ensure you use the correct MIME type (e.g., image/jpeg , application/zip ) so the user's operating system recognizes the file format correctly.
How to Download a File from Base64 in Vue.js In modern web development, you often receive file data from an API as a rather than a direct file URL. This is common when handling dynamically generated reports, images from a database, or secure documents. In Vue.js, you can easily convert this string back into a downloadable file for your users. 1. The Simple Method: Data URLs
axios.get('/api/report/download', { responseType: 'blob' }) .then(response => { const url = window.URL.createObjectURL(new Blob([response.data])); const link = document.createElement('a'); link.href = url; link.setAttribute('download', 'report.pdf'); document.body.appendChild(link); link.click(); window.URL.revokeObjectURL(url); }); Use code with caution. Best Practices & Troubleshooting