Utilities tools hub
Handy one-off tools for work and life: scheduling, documents, DNS, dice rolls, and side-by-side comparisons.
Time & scheduling
Time zones, work hours, age, and countdown timers.
Random & picks
Dice, teams, and constrained random numbers.
Network & DNS
IP checks, DNS lookup, fingerprints, and short links.
Business documents
Invoices, receipts, resumes, and cover letters.
Name & idea generators
Bios, startup ideas, business names, and explainers.
Media & layout
Aspect ratios, bitrates, and hashing helpers.
- Aspect ratio calculator Compute missing width or height from a ratio (e.g. 16:9) for video and image frames.
- Bitrate calculator Estimate file size, duration, or bitrate for audio and video encoding estimates.
- Text hash (SHA / MD5) Compute MD5, SHA-1, SHA-256 hashes of text in the browser with the Web Crypto API where available.
Compare & simulate
Side-by-side choices, tool finder, and cost/ROI sims.
Everyday utilities and small business helpers
The utilities hub bundles time zone comparisons, random picks, DNS and IP checks, invoice and receipt generators, resume helpers, and side-by-side comparison simulators. They solve one-off tasks without installing specialist apps.
Many tools are global; a few assume common business formats. Adjust currency, dates, and legal wording to match your country before sending documents to customers or employers.
When to use a dedicated app instead
Invoices, contracts, and tax documents may need accountant-approved templates in your jurisdiction. Use our generators for drafts and estimates, then validate totals and legal text before official use.
FAQ
- Are invoice and receipt generators legally binding?
- They produce formatted documents you can print or share. Legal effect depends on your local rules, agreed terms, and signatures โ not on the generator alone.
- How accurate is the DNS lookup tool?
- It reflects public DNS responses at query time. Propagation delays and resolver caching can make results differ from what you see elsewhere minutes later.
- Can I use random pickers for giveaways?
- Yes for informal draws. For regulated contests, follow platform rules and document how winners were chosen.
- Do utilities need an account?
- No account is required for standard use on this hub. Download or copy results you want to keep before closing the page.