About Zelipho

Zelipho is a collection of free, browser-based mini-tools built to solve small but real everyday problems — converting an image format, estimating an electricity bill, generating a name for a fantasy character, or checking how fast a mouse button responds. Every tool on this site runs directly in your browser with no server uploads, no account required, and no cost.

What We Build

Zelipho currently offers over 100 tools across four main categories:

  • Image tools — format converters (WebP, AVIF, HEIC, PNG, JPG, DDS, SVG and more), a cropper, rotator, EXIF stripper, blur tool, and watermark remover. All conversions happen locally; your photos never leave your device.
  • Calculators — marketing metrics (CPM, CPC, ROAS, CAC, LTV), e-commerce fee calculators (eBay, Etsy, Amazon, Dropshipping), electricity bill estimators for Pakistan DISCOs, education calculators (AP exam score converters, CGPA), and general home calculators.
  • Fantasy name generators — randomized name sets for D&D campaigns, RPG worldbuilding, and creative writing: elves, dwarves, orcs, dragons, space stations, secret societies, and more.
  • Hardware test tools — browser-based testers for mouse buttons, click speed, polling rate, keyboard key detection, display refresh rate, and microphone input.

Why We Built This

Most search results for simple tasks like "convert WebP to JPG" or "calculate ROAS" land on slow, ad-heavy sites that require sign-ups or upload files to remote servers. Zelipho exists to be the alternative: fast-loading, straightforward pages where the tool is immediately available above the fold and the explainer content is actually useful rather than filler.

The tools are built to stay accurate. Fee calculators are updated when platforms change their rates (eBay, Etsy, Amazon), electricity bill calculators use current published tariff slabs, and AP exam score converters reflect current College Board conversion tables. Where a formula or rate comes from a third party that controls it, we say so on the page rather than presenting approximations as exact.

Privacy by Design

With the single exception of the Image Extractor tool (which fetches a URL you provide on our server), every tool on Zelipho processes your data 100% in your browser. There are no file uploads to our servers, no accounts, and no session data stored. Analytics (Google Analytics, Microsoft Clarity) only load after you explicitly accept the cookie consent banner — never automatically. See our Privacy Policy for the full breakdown.

Who Makes Zelipho

Zelipho was launched in 2025 and is an independent project maintained by a solo developer. New tools are added regularly based on user requests and gaps spotted in existing online tools. If you have a suggestion for a tool that should exist here, or you find a bug or an outdated formula, we want to hear about it — reach out at [email protected].

Our Chrome Extensions & Themes

We are also developing Chrome extensions and themes. Smart Copy Hub is a clipboard history and snippet manager — it auto-saves everything you copy along with the source page URL so you can jump back to it in one click. All clipboard data stays on your device in chrome.storage; nothing is sent to any server. Crimson Smoke is a dark Chrome visual theme — a supercar aesthetic with deep red tones, zero code, and zero data collection.

Our Android Apps

Beyond the web tools, we also publish Android apps on Google Play — you can find them in the Apps section. These are standalone products with their own design and features, separate from the browser tools on this site.

Advertising

Zelipho is free to use and is supported by display advertising via Google AdSense. Ads help cover hosting and development costs without putting any tool behind a paywall or login wall. We do not run pop-up ads, auto-play video ads, or interstitials that block the tool you came to use.

Get in Touch

Questions, suggestions, or bug reports are welcome at [email protected]. You can also visit our Contact page for more details.