Browse practical tools by category, understand what each group is designed for, and choose the right workflow for images, PDFs, QR codes, video, audio and developer tasks.
Convert JPG, PNG, WebP, HEIC and AVIF files into the format you need.
Format conversion is most useful when the destination has a compatibility, transparency or file-size requirement. Changing a format does not automatically improve source quality, so the right target depends on what you need to do next.
Convert JPG, PNG and WebP images between common web formats from one browser-local workspace.
Convert iPhone and iPad HEIC photos to compatible JPG images.
Convert AVIF images to compatible JPG files quickly and easily.
Convert AVIF images to high-quality PNG files.
Resize, compress, crop, rotate, remove backgrounds and split image content.
Image utilities solve different problems even when they work on the same file. Resize changes pixel dimensions, crop changes framing, compression changes encoding size, enhancement changes the perceived appearance, and OCR extracts text rather than producing another image.
Turn photographed paper into a clean front-facing document by detecting corners, correcting perspective and straightening small tilt.
Automatically improve brightness, contrast, color, shadows, highlights and sharpness, then fine-tune the result manually.
Change image width and height while keeping the aspect ratio when needed.
Reduce JPG, PNG or WebP file size with adjustable quality settings.
Crop images by dragging across the preview, using size controls or common aspect ratio presets.
Rotate images left or right and flip them horizontally or vertically.
Remove a white, black or custom solid-color background and download a transparent PNG.
Convert scanned or photographed color and black-and-white film negatives into positive JPG or PNG photos.
Detect and split separate objects from transparent PNG or WebP images into individual PNG files.
Split flyers, catalogs and product collages into individual JPG or PNG images with an adjustable grid.
Extract editable text from JPG, PNG or WebP images with selectable recognition languages and TXT download.
Add the same text or image watermark to multiple JPG, PNG or WebP images with consistent size, position, opacity and rotation.
Hide faces, license plates, personal information or other areas with adjustable mosaic and blur effects.
Create clean JPG, PNG or WebP copies without carrying common EXIF or GPS metadata.
Resize, compress and convert multiple images together using one set of settings.
Run practical face detection and AI super-resolution directly on your device.
AI Photo Tools run compact computer-vision models in the browser rather than uploading each source image to a remote inference API. That keeps server inference cost low and can improve privacy, while performance still depends on the user's browser, GPU and available memory.
Automatically detect visible faces and hide them with adjustable blur or mosaic directly in the browser.
Enlarge images 2Γ with a lightweight ONNX super-resolution model processed tile by tile in the browser.
Automatically separate the main subject from complex photo backgrounds with an AI segmentation model running in the browser.
Upscale, denoise, sharpen and improve video color with a shared quality-first WebGPU AI pipeline.
Zavilo AI Video Tools share one browser-local WebGPU pipeline, but each tool applies a different quality-first focus. Use the general enhancer for broad improvement, or choose a focused tool when resolution, noise, sharpness or color is the main problem.
Improve video detail, sharpness, contrast and color with browser-local WebGPU AI. Source video stays on the device.
Upscale video toward 2Γ resolution with browser-local Real-ESRGAN while preserving source-frame cadence.
Reduce visible noise and compression grain while preserving edges with browser-local AI video processing.
Recover edge detail and improve perceived sharpness with a quality-first browser AI video pipeline.
Improve video contrast, saturation and tonal balance locally in the browser while keeping the source private.
Extract structured tables and redact sensitive information from document images directly in the browser.
AI Document Tools combine browser OCR with layout-aware processing. Use them to turn photographed schedules, forms and table-like images into structured output, or to create a safer copy before sharing documents that may contain private information.
Generate favicons, web interface icons and app icon sizes from your images.
Website favicons, interface icons and app icons share square-image workflows but have different output requirements. A favicon needs browser-compatible sizes and ICO support, while app and interface assets often need several PNG dimensions.
Create, merge, split, convert, watermark, sign and protect PDF documents.
PDF tasks range from structural operations such as merge and split to page rendering, watermarking, signing, editing and password protection. The correct workflow depends on whether you are changing the page set, visual content or document security.
Combine multiple JPG, PNG and WebP images into one PDF and drag to arrange the page order.
Convert all or selected PDF pages to JPG or PNG images with adjustable resolution and quality.
Split a PDF into smaller documents or extract selected pages and page ranges from one workspace.
Combine multiple PDF files into one document and arrange the merge order before downloading.
Edit existing PDF text by covering and replacing it, add new text, cover areas, and place images or stamps on PDF pages.
Add text or image watermarks to all or selected PDF pages with adjustable size, opacity, rotation and position.
Draw a signature or use a signature image, then place and resize it directly on a selected PDF page.
Add an open password to a PDF with AES-256 encryption and download a protected copy.
Remove a known password from a protected PDF and download an unlocked copy.
Remove standard descriptive metadata from a PDF while preserving its pages.
Generate customized QR codes or read QR content from an image.
QR tools are useful both for publishing and checking encoded information. A generator creates a machine-readable code from text or a URL, while the reader decodes an existing QR image so you can inspect its payload.
Collect files from different folders, bundle them into archives and protect them locally in your browser.
File tools are useful when the files you need are scattered across different folders or drives. Add only the files you want, keep the originals in place, and create a single archive or protected bundle directly in the browser.
Drag and drop files from different folders, keep adding only the files you need, and create one encrypted ZIP without moving or copying the originals.
Calculate SHA-1, SHA-256 and SHA-512 checksums for local files.
Preview and create renamed file copies with batch naming rules.
Create ZIP archives or extract ZIP files locally in the browser.
Extract useful images and thumbnails from video files.
Video tools can extract frames, trim clips, resize or compress video, remove or extract audio, add subtitles and convert speech to text. These operations differ in processing cost and browser compatibility, so large media files can take longer on lower-powered devices.
Capture single, multiple or automatically spaced JPG or PNG frames from MP4, WebM and MOV videos.
Cut MP4, WebM or MOV videos by choosing start and end times, with fast lossless or exact trimming.
Remove the audio track from MP4, WebM or MOV videos while keeping the original video quality.
Convert a selected MP4, WebM or MOV video section into an animated GIF with adjustable size, frame rate and colors.
Create 9:16, 4:5, 1:1 and 16:9 social video versions in one browser-local workflow with direct ratio selection or Custom framing controls.
Reduce MP4, WebM or MOV file size with adjustable compression and optional output resolution limits.
Rotate MP4, WebM or MOV videos left, right or 180 degrees, or flip them horizontally or vertically.
Extract audio from MP4, WebM or MOV videos and convert it to MP3 with selectable audio quality.
Join multiple MP4, WebM or MOV clips into one MP4 and arrange the video order before merging.
Add SRT or VTT subtitles to MP4, WebM or MOV video and export an MP4 with an embedded subtitle track.
Convert speech in MP4, WebM or MOV video into editable text and timestamped SRT or VTT subtitles.
Convert MP3, WAV, M4A, AAC or OGG speech into editable text and TXT, SRT or VTT downloads, with optional speaker separation.
Transcribe meeting audio or video into a timestamped meeting record, with optional speaker separation and participant naming.
Translate SRT or VTT subtitle files into another language while preserving the original timestamps.
Find and translate a text subtitle track embedded in an MP4 or MKV video, then download the result as a matching SRT file.
Compare text, format JSON, encode values, generate UUIDs and hashes, and convert timestamps.
Developer utilities are designed for frequent low-friction tasks such as validating JSON, comparing text, encoding values, creating UUIDs and hashes, and converting timestamps. They are useful for inspection and preparation, but output should still be interpreted in the context of the system you are working with.
Clean, transform, sort and count text from one browser-local workspace.
Test regular expressions, inspect matches and run replacements in your browser.
Parse URL components and query parameters or build UTM campaign links.
Convert HEX colors to RGB and HSL and check WCAG contrast ratios.
Convert common SQL syntax between MySQL or MariaDB, PostgreSQL and SQL Server, then analyze queries for tables, joins, CTEs and risky patterns.
Write Markdown with a live preview, inspect sanitized HTML, and export Markdown or standalone HTML in your browser.
Clean, filter, sort, merge and split CSV files in one browser-local workspace.
Convert Excel to JSON, JSON to Excel, JSON to CSV and CSV to JSON with browser-local processing and table preview.
Compare two blocks of text line by line and quickly find added, removed or changed content.
Format, minify and validate JSON with clear parsing errors and copy-ready output.
Encode UTF-8 text to Base64 or decode Base64 back to readable text.
Encode URL components safely or decode percent-encoded text into readable values.
Generate one or many RFC 4122 version 4 UUIDs and copy them instantly.
Generate MD5 and SHA-256 hashes from text for checksums, comparisons and development tasks.
Convert Unix timestamps to dates and convert local date and time values back to Unix seconds or milliseconds.
The best tool depends on what you want to change in the file. Format conversion, resizing, compression, extraction and enhancement are different operations even when they begin with the same image or document.
Choose Image Converter to change JPG, PNG or WebP format. Resize changes pixel dimensions, Crop changes framing, and Compress targets file size. AI enhancement is a separate workflow intended to improve perceived detail or clarity rather than simply changing the file container.
Use Images to PDF to create a document from pictures, PDF to Images to rasterize pages, PDF Pages to split or extract pages, and Merge PDF to join complete PDF documents. Editing, watermarking, signing and password protection each change different aspects of a PDF.
Trimming changes duration, resizing changes resolution and compression targets output size. Speech-to-text, subtitle translation and AI enhancement perform different analyses and may require more processing time or newer browser features.
Converting a file does not recreate information that is missing from the source. Upscaling can create more pixels, OCR can make recognition mistakes, and lossy compression can discard detail. Keep important originals and verify generated output before using it for publishing, records or other consequential work.