What den4b.com Is and What Tools It Offers

Updated

den4b.com is the site of a long-running collection of productivity utilities and browser-based developer tools, in operation since 2004. It offers six desktop applications—ReNamer, Shutter, Hasher, Resizer, Colors, and RandPass—plus a set of web tools for tasks like hashing, encoding, number conversion, password generation, regular expressions, and network checks. If you need to batch-rename files, verify checksums, schedule automated actions, or resize images in bulk, the site is a plausible place to start; if you need a single integrated suite or a hosted service, it is not that.

Desktop applications

The site's main products are Windows-oriented utilities, each focused on one job:

Tool What it does Notable capabilities from the site
ReNamer Bulk file renaming Prefix/suffix rules, text replacement, case changes, number sequences; Regular Expressions, Pascal Script, metadata tags, folder renaming, full Unicode handling; save rule sets
Shutter Task scheduler and automation Trigger shutdown, reboot, run a program, or play a sound based on time, CPU usage, battery level, countdown, or custom events; includes remote web control
Hasher File checksum and verification Generate and verify CRC32, MD5, SHA1, SHA256, SHA512 and many others simultaneously; compare files; export to SFV, MD5SUM, or SHA1SUM
Resizer Batch image resizing Drag-and-drop photos, choose resize method, aspect ratio, and target format (JPEG, PNG, GIF, BMP, TIFF); custom filename patterns
Colors Color picker and converter Pick colors from the screen or palettes; convert between RGB, HSV, HSL, CMYK and other models
RandPass Random password generation Letters, digits, symbols, or word lists (Diceware, EFF); custom rules, exclusions, command-line support

A few details worth knowing before you download:

  • RandPass 2.3 (released about a month before the site snapshot) makes generated passwords cryptographically secure by default, adds an entropy-based strength rating, and expands bundled word lists with BIP-39 and Orchard Street options. If you relied on older versions, the default random generator has changed.
  • Shutter 4.9 rebuilt the Network Usage monitor, so behavior in that area may differ from earlier releases.
  • Hasher is the tool to reach for when you need to confirm a download or transfer wasn't corrupted—it produces and checks the common checksum formats in one pass.

Browser-based tools

Beyond the desktop apps, the site hosts a Tools section with web utilities. The listing includes Browser Info, Date Span, Encoder and Decoder, Hash and Checksum, Number Converter, Password Generator, Ping Host, Port Check, Regular Expressions, Text Case, and Trace Route. These are useful for quick one-off tasks—converting a number base, checking whether a port is reachable, or testing a regex—without installing anything. The site does not state whether these tools process data locally or on a server, so avoid pasting sensitive input into them without confirming that yourself.

Deciding whether it fits your task

  • Choose a desktop app if your work is repetitive and file-based: renaming hundreds of files with a consistent pattern (ReNamer), resizing a photo batch to fixed dimensions (Resizer), or verifying a set of checksums (Hasher).
  • Choose Shutter if you want actions triggered by system conditions—for example, shutting down after a long encode or running a script when CPU usage drops—rather than by a fixed clock time alone.
  • Choose the web tools for occasional, small tasks where installing software isn't worth it.
  • Look elsewhere if you need cross-platform coverage, a cloud-synced workflow, or a single unified application; the site presents these as separate utilities.

Where to go on the site

The navigation exposes Products (overview and individual tool pages), Tools (browser-based utilities), Downloads, Documentation, Forum, and Help for each product. Licensing and commercial details sit under Purchase, Compare Editions, Licensing Terms, and Refund Policy. The site shows a "Buy" link and a purchase page, which indicates paid editions exist, but the snapshot does not include prices or state which features are free versus paid—check the Compare Editions page before committing. Each product page also carries a "Downloads" and "More info" link, and several products display award badges, which reflect the vendor's own presentation rather than independent testing.