VorTool
Free Online Tools

Privacy-First Free Online Tools

Free online tools running 100% locally in your browser — JSON formatter, QR code generator, 2FA authenticator and more.
Zero uploads, no sign-ups.

Privacy

Online 2FA Authenticator (Web TOTP)

Client-side 2FA online tool running 100% offline. Generate 6-digit TOTP verification codes in your browser without a phone app.

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Wasm Speed

Hash & Checksum Calculator (MD5, SHA256)

Compute MD5, SHA-1, SHA-256, and SHA-512 checksums for text and large files locally with WebAssembly.

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Zero Upload

JSON Formatter (Local Parser)

Format, compress, and validate JSON data with syntax highlighting.

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Client-Side

Base64 Encoder & Image to Base64

Free online tool to convert images to Base64 and decode Base64 strings to images, 100% locally in your browser.

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Multi-Size

Favicon Creator & Multi-Size ICO Generator

Convert PNG, JPG, SVG to multi-resolution transparent favicon.ico (16x16 to 256x256) locally in your browser. 100% client-side and privacy safe.

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Offline

Batch Photo Watermark (100% Offline)

Batch watermark photos locally in your browser. Protect sensitive ID cards and documents with zero server uploads.

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No Expiry

QR Code Generator & Customizer

Generate custom QR codes with artistic presets, rounded dots, and logo embedding. 100% free and permanent.

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Why Use Local Browser Tools?

Experience a faster, safer, and cleaner way to work.

No Server Uploads

Your data never leaves your device. Total privacy for your sensitive JSONs and images.

Zero Latency

No network requests means no waiting. Get your processed results instantly as you type.

Works Offline

Once the site is loaded, most tools work completely offline using local web workers.

No Sign-ups

Completely free to use. No paywalls, no annoying registrations, just pure utility.

Frequently Asked Questions

What kind of local tools are available here?
We provide a comprehensive suite of in-browser utilities that work seamlessly across desktop and mobile devices. For example:

• Security: Generate secure 2FA TOTP codes without relying on third-party mobile apps.
• Media Processing: Create multi-resolution ICO files instantly or protect your images using the Watermark tool.
• Developer Data: Format JSON, encode Base64, and generate hashes on the fly.
Are my files and sensitive data uploaded to your servers?
No, never. You don't need to install any software or extensions, and we don't even have backend servers to process your data. Everything—from your 2FA secret keys to your private images for watermarking—is processed locally within your browser using our compute engine. 100% privacy guaranteed.
Can I use these tools completely offline?
Yes! The entire toolkit is completely free and supports true Offline Mode. Once the site loads, your browser caches the application engine. You can disconnect your internet and safely continue generating 2FA codes, creating ICOs, or formatting JSON without network latency.
How do I format or validate JSON online without uploading my data?
Open the JSON Formatter & Validator and paste your code. It beautifies, minifies and validates JSON instantly, with a tree viewer for exploring nested data. Because parsing happens 100% in your browser, your payload never leaves your device.
How can I convert an image to Base64 without uploading it?
The Base64 converter turns any image into a Base64 string — useful for embedding icons in HTML, CSS or emails — and decodes Base64 strings back into images. Drag and drop a file, and the conversion runs locally in your browser with no upload.
What is a TOTP code and how does two-factor authentication (2FA) work?
TOTP (Time-based One-Time Password) is the algorithm behind Google Authenticator and Microsoft Authenticator. The 2FA authenticator generates the same rotating codes from your secret key on your PC browser — no phone app required — so you can sign in to accounts that require two-factor authentication.
How do I create a favicon.ico from a PNG or SVG?
Use the PNG to ICO converter: upload a PNG, JPG or SVG and download a standard favicon.ico with sizes from 16x16 to 256x256. Multiple resolutions are embedded in one file for crisp icons in browser tabs, Windows folders and taskbars — all generated locally.