Blog
Guides and how-tos for getting the most out of every ByteTools utility.
How to URL Decode: Turn %20 Back Into Readable Text
Decode percent-encoded URLs and query strings back to readable text in your browser. Handle %20, + as space and double-encoding, all fully private.
Unix Epoch Time to Date: A Developer's Converter Guide
Convert Unix epoch time to a date and back, in seconds, milliseconds or microseconds, with a live current epoch and reference values. Free and private.
Convert Units Online: Length, Weight, Temperature and More
Convert length, weight, temperature, volume, speed and data units instantly with a free browser tool that uses exact factors and works offline.
How to Make Your Links Pop on X with Twitter Cards
Generate Twitter Card meta tags for rich link previews on X. Learn when to use summary vs summary_large_image and get the image sizes right.
How to Convert a Timestamp to a Date (and Back)
Convert timestamps to readable dates and dates to timestamps, with auto seconds/milliseconds detection and local, UTC and ISO 8601 output. Free and private.
How to Convert Time Between Time Zones Online
Convert any date and time across world time zones with automatic daylight saving and UTC offsets. Compare multiple zones at once, free and private.
How to Repeat Text Thousands of Times Online (Free Tool)
Repeat any word, sentence, or emoji thousands of times with a custom separator. A free, private online text repeater for test data, filler, and patterns.
How to Compare Two Texts and Find the Differences Online
Compare two blocks of text side by side and highlight added and removed lines in color. A free, private online diff checker for docs, contracts, and code.
How to Export SVG to PNG at Any Resolution
Convert SVG to PNG at any size you choose, from tiny icons to print-ready 4K. Render crisp raster images in your browser — free, instant, private.
How to Format SQL Queries Online for Readable Code
Format SQL online: uppercase keywords, clause-per-line layout, and indented AND/OR conditions turn a one-line query into readable code. Free and 100% private.
How to Split a PDF Into Separate Pages for Free
Split a PDF into single-page files or extract a page range in your browser. Free, private PDF splitter with no upload, no watermark and no sign-up.
How to Sort a List Alphabetically or Numerically Online
Learn to sort lines A-Z, Z-A, by length, or numerically in your browser, ignore case, and remove duplicates in one pass with a free private tool.
How to Turn Any Title Into an SEO-Friendly URL Slug
Convert any headline into a clean, lowercase, hyphenated URL slug with accents stripped. A free, private slug generator with live preview and copy.
Create an XML Sitemap From a List of URLs
Turn a plain list of URLs into a valid sitemap.xml with lastmod, changefreq and priority. A free, private sitemap generator for small sites.
How to Sharpen a Blurry Image Online (Free Unsharp Mask)
Sharpen a blurry photo online with an adjustable unsharp mask. Enhance edge detail, compare before and after, and download free with no upload.
SHA-512 Hash Generator: The Strongest SHA-2 Digest
Compute SHA-512 checksums of text or files in your browser with Web Crypto. Learn where SHA-512 is used, how it compares to SHA-256, and why it stays private.
SHA-256 Hash Generator: Verify Downloads and Data
Generate SHA-256 checksums of text or files in your browser with Web Crypto. Learn how to verify downloads, why hashes differ, and SHA-256 vs SHA-512.
SHA-1 Hash Generator: Compute and Verify Checksums
Compute SHA-1 hashes of text or files in your browser with Web Crypto. Understand why Git uses SHA-1, its security limits, and how to verify a checksum.
How to Add a Sepia Filter to Photos Online (Vintage Look)
Apply a sepia filter to photos online for a warm vintage look. Adjust intensity with a slider, preview instantly and download free, all private in your browser.
The Online Scientific Calculator You Can Use Anywhere
Use a free online scientific calculator for trig, logs, powers and memory keys, with degree/radian toggling and full keyboard support that runs offline.