66 tools available

Zenveel

Browser-based utility tools. No signup. No server.

Image Tools Online

18 tools

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Aspect Ratio Calculator Online

Calculate aspect ratios and scale dimensions for images and video

Image Resizer Online

Resize images to exact pixel dimensions

Image Converter Online

Convert between PNG, JPEG, WebP formats

PNG to JPG Converter

Convert PNG images to JPG format in your browser

Text Tools Online

12 tools

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Case Converter Online

Convert text between different cases

Word Counter Online

Count words, characters, and reading time

Markdown Preview Online

Render Markdown to HTML with live preview — or strip to plain text

Lorem Ipsum Online

Generate placeholder text in bulk

Web Dev Tools Online

9 tools

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CSS Gradient Online

Generate CSS gradient code visually

Box Shadow Online

Build CSS box shadow with live preview

Color Converter Online

Convert between HEX, RGB, HSL, and OKLCH

CSS Units Online

Convert between px, rem, em, vw, and more

Developer Tools Online

20 tools

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JSON Formatter Online

Format, validate, and minify JSON

Base64 Encoder Online

Encode and decode Base64 strings

URL Encoder Online

Encode and decode URL components

UUID Generator Online

Generate UUID v4 values in bulk

Converter Tools Online

4 tools

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EPUB to PDF Converter Online

New

Convert EPUB eBooks to PDF in your browser — no server, no registration

PDF to EPUB Converter Online

New

Turn PDF files into reflowable EPUB eBooks — no server, no registration

Images to GIF Converter Online

New

Combine multiple images into an animated GIF in your browser — no server, no registration

GIF to Images Converter Online

New

Extract every frame of an animated GIF as PNG, JPG, or WebP — no server, no registration

Generator Tools Online

2 tools

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QR Code Generator Online

New

Create custom QR codes for links, text, Wi-Fi, email, and more — download as PNG or SVG

Barcode Generator Online

New

Create Code 128, EAN-13, UPC-A, Code 39, and more barcodes — download as PNG or SVG

Typing Online

1 tools

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Typing Practice Online

Test and improve your typing speed and accuracy

About Zenveel

Zenveel is a collection of 66+ free online utility tools for developers, designers, and anyone who needs a quick task done without installing software. Every tool — from JSON formatters to image compressors — runs entirely inside your browser using JavaScript and the Web APIs built into modern browsers.

That means your files, text, and data are never uploaded to a server. Nothing is stored, logged, or transmitted anywhere. Close the tab and everything you processed is gone — Zenveel simply has no backend to send it to.

There's no signup, no account, and no paywall. Tools are organized into categories — Developer, Text, Web, Image, Convertor, Generator, and Typing — so you can jump straight to what you need or use the search bar above to find a specific tool by name or keyword.

Why use browser-based tools

  • Your data stays private — nothing leaves your device, which matters for sensitive JSON, API keys, or personal images.
  • No installation or account creation — open a tool and start using it immediately.
  • Works offline once a page has loaded, since processing happens locally rather than on a remote server.
  • Consistent, fast results without upload/download wait times for file-based tools like image compression.

Frequently Asked Questions

Is Zenveel free to use?

Yes. Every tool on Zenveel is free, with no signup, subscription, or usage limits.

Do I need to create an account?

No account is required for any tool. Just open a tool page and use it.

Is my data uploaded to a server?

No. All processing happens locally in your browser. Files and text you work with are never sent to Zenveel or any third party.

How many tools does Zenveel have?

Zenveel currently offers 66+ tools across developer, text, web, image, convertor, generator, and typing categories, with more added regularly.