Blog
Short, practical guides that pair with Toolshelf's browser-based tools. No fluff — just enough context to solve the problem and open the right utility.
Page 3 of 6
How to Extract Audio from Video (MP4 to MP3)
Save the soundtrack from a local MP4, WebM, or MOV file as MP3, WAV, or M4A in your browser — without uploading the video.
Read articleHow to Generate Bulk Barcodes from a CSV
Turn a spreadsheet column of SKUs or serials into a ZIP of barcode images. Prepare the CSV, pick a symbology, then print or archive the files.
Read articleHow to Record Voice in Your Browser
Record a microphone take in Chrome, Firefox, Edge, or Safari, download the real format your browser writes, and know the 30-minute limit.
Read articleCron Expression for Every 5 Minutes
The five-field cron expression for every 5 minutes is */5 * * * *. See what each field means, related every-N-minute schedules, and mistakes that change the run time.
Read articleencodeURI vs encodeURIComponent
encodeURI() encodes a full URL and leaves reserved characters alone. encodeURIComponent() encodes one value so &, =, and ? cannot break query strings. See examples and common mistakes.
Read article