Image Tools
Shrink oversized photos without losing quality, batch convert between PNG, JPEG, and WebP, add text watermarks, turn images into grayscale, generate passport-style ID photos, or record your screen. A mix of in-browser tools (watermark, grayscale, Base64) and server-powered conversions (format conversion, compression) — uploaded files are deleted right after processing.
Image Tools
Image Base64 Conversion Tool
Free online image to Base64 converter with drag-and-drop upload, real-time preview & multiple image formats. Embed images in code, reduce HTTP requests.
Image Compression Tool
Free online image compressor for JPEG, PNG, and WebP. Adjust quality and dimensions while local browser processing protects your privacy.
Image to WebP Converter
Free online image to WebP converter. Convert JPG, PNG, and GIF files to WebP for smaller images with local browser processing.
Image Format Converter
Free online image format converter for JPG, PNG, WebP, BMP, and GIF files. Adjust output quality and process images in your browser.
Image Watermark Tool
Free online image watermark tool. Add text or image watermarks with adjustable position, opacity, and size using local browser processing.
Image Grayscale Conversion Tool
Free online image grayscale converter. Turn color images into black-and-white images with batch processing in your browser.
Image to PDF Converter
Free online image to PDF converter. Convert JPG, PNG, WebP to PDF with adjustable page size, orientation and fit. Processed locally in browser.
ID Photo Creation Tool
Free online ID photo maker with AI background removal. Supports Chinese standard sizes (one-inch, two-inch, passport, ID card, driver's license, etc.), one-click standard ID photos, processed locally in your browser for privacy.
Screen Recorder
Free online screen recorder. Capture your screen, a window, or a browser tab with optional audio and instant video download.
Image Grid Splitter
Free online image grid splitter. Divide an image into a 3×3 grid for Instagram, WeChat Moments and other platforms. Local in your browser.
Image Crop Tool
Free online image cropper. Crop, rotate and flip images with aspect ratio presets and pixel-precise controls. Local — nothing is uploaded.
What this category can do
Image tools process bitmap files and screen media. They cover image Base64, compression, WebP and format conversion, watermarks, grayscale, image-to-PDF, ID photos, screen recording and image grids. This category edits pictures; design tools generate visual values and document tools handle PDF or Office layouts.
Most tools process input in the browser when possible. For files, tokens, documents or network checks, review the selected tool before using sensitive data.
Common use cases
- Compress photos or convert them to WebP before publishing on a site.
- Add watermarks, create grayscale copies, prepare ID photos or arrange images into a grid.
- Turn images into PDF, encode an image as Base64 or record a screen clip for sharing.
FAQ
Will compression reduce quality?
Lossy compression can remove detail, especially at low quality settings. Keep originals when quality matters.
When should I use WebP?
WebP is often smaller for web delivery. PNG is better for sharp transparency; JPEG remains common for photos.
Does conversion remove EXIF data?
Some conversions may strip metadata, but do not assume location or camera data is removed unless the tool says so.
Why might an ID photo be rejected?
Official rules can specify size, background, head position and file limits. Check the target authority.
Related Categories
Design Tools
Grab a color from the screen, build CSS gradients, generate QR codes and barcodes, preview SVGs, check for dead pixels, or find the right solid background shade. Quick visual tasks that don't need a full design suite.
Document Conversion
Turn Office files into PDFs, pull editable text out of PDFs back into Word, or export each page as an image. Some tools (PDF viewer, Mermaid) run in the browser; Office↔PDF conversion uses a server-side engine for performance — uploaded files are removed immediately after conversion.
Hardware Testing
Sticky key? Dead pixel? Mic not picking up? Before you buy a replacement, run a quick check. Test every key, verify your screen's refresh rate, confirm your camera and microphone work, or measure ambient noise with the decibel meter.
