ToolDolfen Hub

Converters

Fast, secure format converters for web images (WebP, PNG, JPG), developer encodings (Base64, URL, HTML entities), Markdown, and QR codes.

PNG to JPG

PNG to JPG Converter

Convert PNG images to JPG format online for free. Replaces transparent pixels with a clean white background. 100% browser-based with no file uploads.

100% browser-based — no file uploads to any server

Automatic white background fill for transparent PNGs

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JPG to PNG

JPG to PNG Converter

Convert JPG photos to PNG format online for free. Export uncompressed PNG containers from any JPEG file with instant client-side processing.

100% browser-based — no server uploads

Lossless PNG output preserves full pixel quality

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WebP ConverterWeb Optimized

WebP Converter

Convert images to and from modern WebP format online for free. Convert WebP to JPG, WebP to PNG, or JPG/PNG to WebP with instant browser conversion.

Convert WebP to JPG, WebP to PNG, JPG to WebP, PNG to WebP

Browser-native processing — no server uploads required

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JPG to WebPWeb Optimized

JPG to WebP Converter

Convert JPG images to next-gen WebP format online for free. Save 25-35% file size for faster page speeds while maintaining high visual quality.

25-35% smaller file size than equivalent JPG

Browser-based conversion — no server uploads

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PNG to WebPWeb Optimized

PNG to WebP Converter

Convert PNG images to WebP format online for free while preserving full alpha transparency. Reduce graphic asset weight for faster web performance.

WebP lossless is 26% smaller than PNG on average

Transparent PNG files supported — transparency preserved in WebP output

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WebP to JPG

WebP to JPG Converter

Convert WebP images to standard JPG format online for free. Ensure universal compatibility with older software, email clients, and printing services.

Converts WebP to universally compatible JPG/JPEG

Browser-based — no server or software needed

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WebP to PNG

WebP to PNG Converter

Convert WebP files to transparent PNG images online for free. Recover lossless PNG graphics for Photoshop and design software with zero uploads.

Lossless PNG output preserves full image quality

Transparency from WebP is preserved in PNG output

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QR CodeNew

QR Code Generator

Create custom QR codes online for URLs, text, phone numbers, or email addresses. Download high-resolution PNG QR codes instantly with no signup or expiration.

100% browser-based — no server uploads

Supports URL, text, email, phone, and SMS

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Base64New

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 strings back to UTF-8 plain text online for free. Supports URL-safe encoding with instant client-side execution.

Encode text to Standard or URL-safe Base64

Decode Base64 back to plain text instantly

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Color PickerNew

Color Picker & Converter

Pick any color visually and convert instantly between HEX, RGB, and HSL formats online for free. Copy CSS color values with one click for web design.

Visual color picker with color wheel

Instant conversion between HEX, RGB, and HSL

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URL EncoderNew

URL Encoder / Decoder

Encode special characters into percent-encoded URLs or decode URLs back to readable text online for free. Supports full URI and URI component formats.

Encode full URLs or individual components

Decode percent-encoded (%XX) strings

Open Free Tool

Markdown → HTMLNew

Markdown to HTML

Convert Markdown to clean HTML code online with a live side-by-side preview. Supports GitHub Flavored Markdown (tables, code blocks) with one-click copy.

Live side-by-side Markdown preview

Supports GitHub Flavored Markdown (GFM)

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PNG to PDFTransparency Supported

PNG to PDF Converter

Convert PNG images to PDF documents online for free. Combine multiple PNG files into a clean PDF with transparent backgrounds and custom page margins.

Direct native PNG embedding preserves crisp graphics and text

Batch combine up to 50 PNG screenshots into a single multi-page PDF

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Why Use ToolDolfen Converters?

All utilities in our converters suite adhere to our browser-native computing standard. Where modern browser APIs permit, computations happen strictly on your hardware via JavaScript, HTML5 Canvas, and WebAssembly, guaranteeing lightning speeds and uncompromising data privacy.