About StudioUtils
A set of simple, fast tools for everyday developer and designer tasks.
What is StudioUtils?
StudioUtils is a collection of free tools for everyday development and design tasks — reformatting a payload, cutting an image down to size, checking a microphone before a call. No account, no upload queue, no watermark on the result.
Philosophy
- Local where it can be. Files you drop into the image tools, the favicon generator and the JSON formatter, and the sound the microphone test listens to, are processed by your own browser; they are never uploaded. The one exception is the IP lookup, which by its nature has to ask a server what address your request arrived from.
- No fluff. Each tool does one thing and does it well.
- Fast. No frameworks and no build step, so pages load quickly, and the heavy work — parsing a large JSON file, re-encoding a big photo — runs in the background without freezing the page.
Available Tools
- IP Address Lookup — your own address and time zone, plus range type, reverse DNS and A/AAAA records for anything you enter.
- JSON Formatter — beautify, minify, validate, and browse JSON as a collapsible tree.
- Image Resizer — resize by pixels or percent, crop to center, and trade quality for file size.
- Image Converter — move images between PNG, JPG, WebP and AVIF.
- Barcode Generator — EAN, UPC, Code 128, Code 39, ITF-14, DataMatrix and PDF417, with check digits verified.
- Favicon Generator — one image in, a full icon set plus manifest and HTML out.
- Microphone Test — input level, device details and playback of a short recording.
- Keyboard Tester — an on-screen layout that tracks which keys you have pressed and which you have not.
- Unix Timestamp Converter — convert epoch time to dates and back, with a live current timestamp.
- Base64 Encoder / Decoder — encode and decode Base64, with URL-safe Base64url support.
Contact
Questions, suggestions, or bug reports? Reach out at [email protected].