Image Tools

ArrayKit's image tools cover the photo and graphics jobs that usually mean opening a heavy editor. Convert iPhone photos from HEIC to JPG, PNG or WebP in batches with the HEIC to JPG Converter, resize pictures by pixels, percentage or social preset with the Image Resizer, then bring a photo under an exact limit such as 50 KB or 200 KB with Compress Image to Size. Turn a logo or icon into a scalable SVG with the PNG to SVG Converter, crop a photo to passport and visa sizes and print a sheet of copies, build a favicon.ico and touch icon, turn a set of pictures into an animated GIF, or caption a photo with the Meme Generator. Arrange several pictures in grid layouts with spacing, rounded corners and a background color in the Photo Collage Maker, and build a chat screenshot for a story or tutorial with the Fake Text Message Generator. Switch formats, change DPI for print, render SVG to PNG, flip, rotate, split, merge, filter, watermark or redact. Read text out of a screenshot with Image to Text, draw or type a signature with the Signature Generator and download it as a transparent PNG or SVG, chart pasted data, and inspect or strip EXIF data. Everything runs in your browser, so images are processed on your device and never uploaded.

  • Image Optimizer — Re-encode and shrink images (JPEG/WebP/PNG), optionally resizing.
  • Image Format Converter — Convert images between PNG, JPEG and WebP entirely in your browser.
  • EXIF Viewer & Remover — View and strip EXIF metadata (including GPS) from photos — nothing is uploaded.
  • Base64 Image Encoder / Decoder — Convert images to Base64 Data URIs with ready-made HTML and CSS snippets, or decode a Data URI back to a downloadable image.
  • App Icon Generator — Turn one image into every iOS, macOS and Android app icon size — downloaded as a ZIP, in your browser.
  • Sprite Sheet CSS Animation Generator — Turn a sprite sheet into a copy-paste CSS @keyframes animation using steps(), with a live preview.
  • SVG to PNG Converter — Convert SVG to PNG or JPG at any scale, with a transparent or solid background, in your browser.
  • Image Color Picker — Upload an image and pick colors from any pixel to get HEX, RGB and HSL values, in your browser.
  • Color Format Converter — Convert a color across HEX, RGB, HSL, HWB, LAB, LCH and OKLCH with a live swatch.
  • Barcode Generator — Generate EAN, UPC, Code 128 and Code 39 barcodes and download them as SVG or PNG.
  • Image Color Palette Extractor — Extract a dominant color palette from an image as HEX, RGB and HSL with CSS variables.
  • Flip & Rotate Image — Rotate by 90° and flip images horizontally or vertically, then download — in your browser.
  • Image Cropper — Crop an image to any area or fixed aspect ratio and download it, in your browser.
  • Image Watermark — Add a text or logo watermark to an image, anchored or tiled, with opacity and rotation.
  • Blur & Redact Image — Permanently blur, pixelate or black out parts of a screenshot before sharing it.
  • Round Image Corners — Clip photos to rounded rectangles or circles and export PNGs with transparent corners.
  • Color Blindness Simulator — See any image the way people with protanopia, deuteranopia or tritanopia see it.
  • Image DPI Changer — Set a PNG or JPEG’s DPI for print without recompressing a single pixel.
  • BlurHash Generator — Turn an image into a BlurHash string, and decode any hash back to a preview.
  • Placeholder Image Generator — Make placeholder images at any size, as SVG, PNG or a data URI.
  • ASCII Art Generator — Convert any image into ASCII art, with character sets, contrast and invert.
  • Image Filters — Apply grayscale, sepia, contrast, blur and more, then export the PNG and the CSS.
  • Image Splitter — Cut a picture into a grid of tiles and download them as a ZIP.
  • Image Merger — Combine images side by side, stacked or in a grid, with gaps and a background.
  • Collaborative Whiteboard — Draw together with someone over a direct browser-to-browser connection.
  • Thumbmark Maker — Turn a photo of an inked thumbprint into a clean transparent PNG for forms.
  • Signature Background Remover — Lift a signature off a photo of paper into a transparent PNG, in the ink colour you pick.
  • Image to Text (OCR) — Pull the text out of photos, screenshots and scans with on-device recognition.
  • Image Resizer — Resize photos by pixels, percentage, preset or longest side — in batches, with a ZIP download.
  • Compress Image to Size — Bring a photo under an exact size such as 20 KB, 50 KB, 100 KB or 200 KB.
  • Passport Photo Maker — Crop a photo to passport and ID sizes and lay out a print-ready sheet of copies.
  • Favicon Generator — Make favicon.ico, PNG sizes, an Apple touch icon and a web manifest from an image, letters or an emoji.
  • GIF Maker — Turn a set of images into an animated GIF with frame delays, looping and a colour palette.
  • Meme Generator — Put top and bottom captions or free-placed text on any image and save it as PNG or JPEG.
  • Chart Maker — Turn pasted data into bar, line, area, pie and doughnut charts you can download as PNG or SVG.
  • HEIC to JPG Converter — Convert iPhone HEIC photos to JPG, PNG or WebP in your browser, in batches, and download them as a ZIP.
  • PNG to SVG Converter — Turn PNG, JPG and other bitmaps into scalable SVG vectors with adjustable colors and detail.
  • Fake Text Message Generator — Build a realistic text-message conversation mockup and save it as an image, for stories, tutorials and jokes.
  • Signature Generator — Draw or type a signature, pick ink and style, and download it as a transparent PNG or SVG.
  • Photo Collage Maker — Arrange photos in grid layouts with spacing, rounded corners and background color, then download the collage.

Guides

  • Compressing a Photo to an Exact File Size — How to compress an image to 50 KB or reduce a photo to 20 KB for job, exam and government forms: what sets file size, KB vs KiB, and when to resize first.
  • HEIC Files, Explained — What a HEIC file is, why iPhones save photos as HEIC, how to open HEIC on Windows, and how to convert HEIC to JPG while keeping quality and dropping GPS data.
  • PNG vs JPG vs WebP, Explained — PNG vs JPG vs WebP: lossy and lossless compression, transparency, file sizes for the same photo, and the best image format for the web, photos and logos.
  • Image to Text: How OCR Works — How OCR turns an image to text: what affects accuracy (resolution, contrast, skew, fonts, language), why handwriting is hard, and how to make PDFs searchable.
  • Image Size, Resolution and DPI, Explained — What image dimensions, DPI and file size mean, how to pick the right pixel size for web and print, and why resizing is not the same as compressing or cropping.

Frequently asked questions

What can the ArrayKit image tools do?
Convert HEIC photos to JPG, resize and compress images, vectorize PNG to SVG, crop, rotate, merge and split pictures, add watermarks, make collages, GIFs, favicons, passport photos, signatures and memes, build fake text-message mockups, read text from an image and remove EXIF data. Everything runs in your browser, so your pictures stay on your device.
Are these image tools private and safe to use?
Yes. Every tool runs in your browser and processes images on your device, so your files never leave your computer and nothing is uploaded. That matters for passports, IDs, receipts and screenshots.
Which image formats do these tools support?
The resizer, optimizer and converter work with PNG, JPEG and WebP; most editing tools accept any format your browser can open, including GIF, BMP, AVIF and SVG. Outputs are PNG, JPEG, WebP, GIF, ICO or SVG depending on the tool.
How do I get a photo under a size limit such as 50 KB?
Open Compress Image to Size, drop the photo and choose a target. It searches for the highest quality that fits and shrinks the picture only if quality alone is not enough. If a form also wants exact pixel dimensions, resize first with the Image Resizer.
Can I make passport photos, favicons, GIFs and memes here?
Yes. The Passport Photo Maker crops to common country sizes and lays out a print sheet, the Favicon Generator produces ICO, PNG and manifest files, the GIF Maker animates a set of images, and the Meme Generator adds captions to any picture.
How do I combine several photos into one picture or make a signature image?
Drop your photos into the Photo Collage Maker, choose a grid layout, then adjust spacing, rounded corners and background color before you download the collage. For a signature, use the Signature Generator to draw or type your name, pick the ink and style, and save it as a transparent PNG or SVG to place on documents.