Convert and compress images to AVIF format in bulk with quality presets and max-width controls. AVIF provides 50% smaller files than JPEG with better quality. 100% client-side.
Convert all your JPEG photos to next-gen AVIF format in one batch. Saves 50% more bandwidth than WebP while preserving visual quality. Everything runs locally in your browser — nothing is uploaded.
Convert AVIF images back to universal JPEG format in one batch. Needed when sharing AVIF photos with recipients whose devices lack AVIF support. Everything runs locally in your browser — nothing is uploaded.
Find the exact bulk conversion you need: PNG→WebP, JPG→AVIF, HEIC→JPG, and 100+ more — each format pair is its own dedicated, optimized tool with quality control and folder-preserving ZIP output.
Generate and inspect invisible Unicode characters — zero-width space (ZWSP), zero-width non-joiner (ZWNJ), zero-width joiner (ZWJ), left-to-right/right-to-left marks, and word joiner. Copy raw bytes or visualizable forms.
Add a logo image or custom text watermark to your videos with position and opacity controls. 100% browser-based.
Bulk AVIF Optimizer lets you convert and compress images to AVIF format in bulk with quality presets and max-width controls. AVIF provides 50% smaller files than JPEG with better quality. 100% client-side.. It works on any device with a modern web browser.
Convert and compress images to AVIF format in bulk with quality presets and max-width controls. AVIF provides 50% smaller files than JPEG with better quality. 100% client-side. It runs entirely in your browser — no software installation or data uploads required.
Upload a file from your device. Drag and drop or use the file picker to select your document.
Yes. After the initial page load, Bulk AVIF Optimizer runs entirely on your device with no internet connection needed. All processing is done locally.
Convert and compress images to AVIF format in bulk with quality presets and max-width controls. AVIF provides 50% smaller files than JPEG with better quality. 100% client-side. All processing happens locally in your browser.
Quality depends on the operation. Lossless operations preserve original quality; compression or format conversion may reduce it based on your settings.
Most tools support PNG, JPG, WebP, HEIC, GIF, and SVG. Check the tool interface for the exact list.
Yes. Images never leave your browser — all processing runs on your device.
Batch support depends on the specific tool. Check the upload area for multi-file support.
Add Text to Photo
Overlays custom text captions onto images with control over font, size, color, alignment, opacity, and rotation angle. Everything runs locally in your browser — nothing is uploaded.
Batch Image Editor
Applies resize, crop, rotate, format conversion, and compression settings to dozens of images simultaneously with one click. Everything runs locally in your browser — nothing is uploaded.
Compress Image to 50KB
Reduces image file size to a specific target — 50 KB, 100 KB, or 200 KB — by automatically adjusting JPEG quality, reducing pixel dimensions, or stripping EXIF metadata. Ideal for government forms, job applications, and upload portals with strict file size limits.
HEIC to JPG
Convert HEIC images to JPG format in your browser. Lossless, private, and completely free — no uploads needed.
Background Remover
Segments the foreground subject from an image using a neural network, producing a transparent PNG. Max 20MB.
WebP to JPG
Convert WEBP images to JPG format in your browser. Lossless, private, and completely free — no uploads needed.