UD5 Toolkit
Image Format Batch Converter - Online to PNG, WebP, JPEG, AVIF
Drop a folder of images and convert all to the same format at once. Choose quality and download as ZIP. Local only.
Image to Base64 Converter - Online Encode Picture to Text
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Base64 Result
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Frequently Asked Questions
It's an online tool that encodes your image file into a Base64 text string. This text representation can be embedded directly into HTML, CSS, or JSON, eliminating the need for separate image files.
Base64 images reduce HTTP requests, improve page load times for small icons or logos, and make your resources self-contained. It's widely used in email signatures, single-page apps, and API payloads.
Yes, Base64 typically increases the size by about 33%. This is because every 3 bytes of binary data are converted into 4 ASCII characters. It's best suited for small images (< 10KB) to avoid negating performance benefits.
Absolutely. This converter runs entirely in your browser using JavaScript. Your images are never uploaded to any server, ensuring complete privacy and security.
All major formats are supported: PNG, JPEG, GIF, WebP, SVG, BMP, and ICO. The tool reads the file as binary and works with any image the browser can display.
You can paste it directly into an HTML
<img src="data:image/png;base64,..."> tag, use it in CSS background-image, or embed it in JSON data for APIs.
Binary to Text Converter - Online Decode Bits to String
Paste binary sequences and convert them back to readable text. Supports space-separated and 8-bit formatted strings. Quick encoding reconversion.
ImageDecoder API Demo - Online Progressive Decode
Decode an image progressively using the ImageDecoder API. See partial results and metadata. Modern alternative to <img>.
Image Steganography Encoder - Online Hide Text in Picture Pixels
Hide a secret message within an image by modifying LSB of pixels. Also decode. Pure canvas manipulation, local only. Fun privacy tool.
Image Text Extractor (OCR) - Online Copy Text from Image
Extract text from images using basic OCR technology. Works best with clear, printed fonts. Completely local, images never leave your browser for privacy.
Image to Binary Array - Online Pixel Dump
Convert any image into a raw binary array of RGBA values. For use in embedded systems or game development. Copy as Uint8Array.
Text to Binary & Binary to Text Converter - Online Translator
Convert text into binary digits and decode binary back to readable text. Handy for education and computer science. All conversions performed locally in your browser.
Image to Binary Text - Online 1‑Bit High Contrast
Convert any photo into a stark 1‑bit black‑and‑white image (no grays). Adjust threshold. Save as PNG.
Hex to Text Converter - Online Hexadecimal Decoder
Decode hexadecimal values back to human-readable text. Ideal for debugging and data recovery. Works fully offline in your browser, keeping your data secure.
PNG to JPG Converter - Online Add White Background
Convert transparent PNGs to solid JPGs by filling the background with white or any color. Fast and local.
Animated GIF to WebP Converter - Online Smaller Size
Convert animated GIFs to animated WebP format for smaller file size. Choose quality level. All processing in browser.
Image to AVIF Converter - Online Next‑Gen Compression
Encode images to the modern AVIF format with lossless or lossy compression. See the quality/size trade‑off. Local WASM.
SVG to PNG Converter - Online Vector to Raster Image
Convert scalable SVG images to standard PNG files with a custom resolution. Works offline; just paste SVG code or upload an .svg file. Private and reliable.
Video to Animated WebP - Online Free Converter
Select a short video and convert it to an animated WebP image for faster web loading. Adjust quality and size. Local only.
QR Code Scanner (Upload Image) - Online Decode from File
Upload an image containing a QR code and decode its content. Works offline using JavaScript QR decoder. No camera needed.
Favicon Converter - Online Image to .ico & Multi-size
Upload a logo and generate a pack of favicon sizes plus a .ico file. All conversion in your browser.
URL Encoder & Decoder - Online Percent Encoding Tool
Encode special characters into URL-safe format or decode percent-encoded strings back to plain text. Fast and reliable, runs locally in your browser.
PDF to Image Converter - Online JPG/PNG Export Per Page
Convert each page of a PDF into a separate image. Choose format and resolution. Rendered locally with PDF.js.
Video to GIF Converter - Online Local Extract Animated Clip
Convert a short video clip to GIF directly in the browser. Trim, resize, and adjust frame rate. No upload required, uses built‑in video decoder. Perfect for memes.
HTML to Plain Text Converter - Online Strip Tags for Clean Copy
Paste HTML and convert to plain text while preserving basic structure (paragraphs, list items). Removes all tags and images. Instant local processing.
English Text to IPA Converter - Online Phonetic Transcription
Convert English words into their International Phonetic Alphabet (IPA) representation. For pronunciation learning. Local.
Image Contrast Enhancer - Online Histogram Equalization
Automatically improve the contrast of dark or washed‑out photos using histogram equalization. One‑click auto‑tune. All canvas‑based.
Photo Mosaic Creator - Online Tile Generator from Your Images
Create a mosaic where many small tiles are replaced with solid colors from a palette. Pixel art style. Adjust grid size. Local canvas.
Text Diff to Image - Online Compare & Export as PNG
Paste two texts, compute the diff, and render the result as a highlighted image. Easier to share changes visually.
Text to Handwriting Converter - Online Realistic Pen Notes
Type notes and convert them into a realistic handwriting image with varied pen styles, ink colors, and paper backgrounds. Perfect for study notes.
Markdown to PDF Converter - Online Clean Export
Write in Markdown and convert it to a styled PDF using your browser's print engine. Customize font and margins. No upload.
HTML to Markdown Converter - Online Clean Content Extractor
Strip HTML tags and convert web content to plain Markdown. Preserve headings, lists, and links. Perfect for content migration. All processing in browser.
Text to ISO Date Converter - Online Parse Any Date String
Paste a human‑readable date (like 'next Friday' or 'March 5, 2023') and convert it to ISO 8601 format. Quick and tolerant.
Video Screenshot Grabber - Online Capture Frame from Video
Load a video file and grab any frame as a still image. Navigate frame by frame. Download the snapshot. All done on your device.
Image Splitter - Online Cut Photo into Grid or Strips
Split an image into equal grid parts or horizontal/vertical strips. Useful for Instagram carousel posts or puzzle creation. Everything runs in your browser.