Media Tools - Image / QR Code / Color / Time

Change ID photo background online: AI portrait cutout with one click (white/blue/red/gray and custom colors). Photos processed locally, never uploaded — perfect for job applications and official documents.

Resize ID photos to official specs online: 1-inch, 2-inch, passport and visa sizes with background change. Processed locally, never uploaded.

Arrange ID photos onto an A4 sheet for printing (8 one-inch or 2-inch photos). Generated locally in your browser.

Check ID photo compliance locally: size, aspect ratio, brightness and background uniformity against common ID/passport/visa requirements.

Convert HEIC/HEIF iPhone photos to JPG online. Batch conversion, quality control, processed locally in your browser — photos never leave your device.

Convert HEIC/HEIF iPhone photos to lossless PNG online. Batch conversion, processed locally in your browser — photos never leave your device.

Convert HEIC/HEIF iPhone photos to efficient WebP in your browser. Batch supported, no upload.

Convert WebP images to universally compatible JPG online. Batch conversion, quality control, processed locally in your browser.

Convert WebP images to lossless PNG online. Batch conversion, processed locally in your browser — images never leave your device.

Convert JPG/PNG images to WebP online: often smaller at similar quality, with batch conversion and quality control — processed locally in your browser.

Convert PNG to WebP online while preserving transparency and cutting size. Batch conversion, processed locally.

Convert SVG vector graphics to PNG bitmaps online. Great for design handoff and compatibility, processed locally.

Convert multiple JPG/PNG images into a single PDF online. Reorder pages, one image per page, generated locally without upload.

Merge JPG photos into one PDF document online. One image per page, reorder freely, generated in your browser.

Convert PNG images into a PDF document. Batch and reorder supported, generated locally.

Merge multiple PDFs into one file online. Unlimited pages and files, processed locally in your browser — documents never leave your device.

Split PDFs by page range online: extract pages 1-10 or any chapter into a new PDF, processed locally without upload.

Convert PDF to JPG images online: every page rendered to high-quality JPG, zipped for download, fully local.

Compress PDFs online: scans and image-heavy files often shrink substantially (depends on quality settings). Local processing, no upload.

Online image to Base64 converter: drag & drop, paste, or upload an image to get a Base64 Data URI. Perfect for inline images and CSS.

Free online Base64 to image converter. Supports data URI format, one-click decode, preview and download.

Free online image stitcher: combine screenshots or photos into one long image, vertical or horizontal, with adjustable gap and background. Composited locally in your browser.

Free online image watermark: text watermark with 9-position placement, size/opacity/color controls, and anti-theft tiling mode. Photos never leave your device.

Online image compression tool: supports PNG, JPEG, WebP format conversion with adjustable quality and max width. Client-side processing, no upload to server.

Online image resizer: exact width/height, aspect lock, PNG/JPEG/WebP export with quality control. Local processing, never uploaded.

Online favicon generator: upload one image and get the full 16/32/48/180/192/512 set, optional circle crop, HTML snippet included. Generated locally.

Online Image Color Extractor: upload an image to automatically extract the dominant colors and generate an 8-color palette with HEX values. Supports drag-and-drop and paste. Essential for design inspiration. All processing is done locally.

Online QR code generator: enter URL or text to create a QR code instantly. Customizable size and error correction. Download as PNG. Generated locally in browser.

Free online QR code decoder: upload, drag & drop or paste an image to decode QR code content instantly. 100% local, your images never leave the browser.

Free online QR code design tool with custom colors, corner styles, dot patterns, and PNG/SVG download support.

Validate EAN-13/EAN-8/UPC-A/UPC-E/Code39/Code128/ITF-14 barcodes for length, charset, and check digits with batch paste support. Runs locally in your browser.

Generate and validate UPC-A (GTIN-12) codes online: bulk checksum-valid codes, complete the check digit, validate existing codes. GS1 test prefixes by default; runs locally in your browser.

Validate China mainland license plate formats (standard, new-energy NEV, armed police, embassy) with province and issuing-office decoding. Local-only.

Online color format converter: HEX to RGB, RGB to HEX, HSL conversion. Supports alpha channel (transparency). Essential tool for designers and frontend developers.

Online px to rem converter with custom root font-size and a common font-size quick table. A must-have for responsive layout work. Local computation.

Visual CSS box-shadow generator: sliders for offset/blur/spread/opacity, live preview, one-click copy. Custom colors and inset support.

Free online color scheme generator tool. Generate complementary, analogous, triadic and more color schemes based on a base color.

Free online color contrast checker tool that tests foreground-background contrast ratio, validates WCAG AA/AAA standards, and auto-suggests accessible colors

Free online CSS gradient generator. Supports linear, radial, and conic gradients with visual color stops, angle control, and live preview. Copy CSS instantly.

Online Color Blindness Simulator: input any color to simulate how it appears under Protanopia, Deuteranopia, Tritanopia, and other color vision deficiencies. Essential for accessible design. All processing is done locally.

Online Tailwind Color Finder: input any HEX color to match the closest Tailwind CSS palette values, showing color distance (ΔE) and class names. Essential for frontend color matching. All processing is done locally.

Online Unix timestamp converter: auto-detects seconds, milliseconds, microseconds. Supports Local, UTC, ISO 8601, and relative time. Essential for developers debugging timestamps.

Free online timezone converter: pick cities and see the equivalent time instantly, plus a live world-clock board. For meetings, travel, and distributed teams. Runs locally in your browser.

Online Cron expression parser: input a 5-field crontab entry (minute hour day month weekday) and get a human-readable schedule description. Supports step values, ranges, lists. Essential for scheduled task debugging.

Free online Cron expression generator. Visual selection of minute/hour/day/month/weekday with auto-generated expression and description.

Free online UUID generator: UUID v7 (time-sortable, index-friendly), v4, NanoID, and ULID in bulk, with version and timestamp parsing. Generated locally, never uploaded.

Free bulk UUID generator: create up to 10,000 v4 UUIDs in one click with hyphen/uppercase/JSON formatting. Copy or download instantly — generated locally, never uploaded.

Online Lorem Ipsum placeholder text generator: create paragraphs, sentences, or words with custom length. Essential for frontend development and UI design.

Validate 18-digit China resident ID numbers: division code, birthdate, and ISO 7064 MOD 11-2 checksum, plus gender parse. Local-only — no upload, no authenticity lookup.

Validate 18-character China Unified Social Credit Codes (GB 32100-2015): alphabet, weighted checksum, department and category parse. Runs locally in your browser — no upload, no registry lookup.