Image and video tools that work on your device.
Pick a task and start immediately. Media files stay in your browser; heavy runtimes load only after the workflow needs them.
Image
Compress, resize, convert, crop, watermark, inspect, sample colors, and assemble images locally.
Image Compressor
Reduce JPG, PNG, and WEBP file size in the browser with WEBP/JPG/PNG export, quality, max dimension, and before-after size comparison.
Open toolImage Resizer
Resize JPG, PNG, and WEBP images locally by width, height, percent scale, output format, and quality.
Open toolImage Format Converter
Convert browser-readable images to JPG, PNG, WEBP, or AVIF with quality controls, optional resizing, support checks, and file-size comparison.
Open toolImage Crop Tool
Crop JPG, PNG, and WEBP images in-browser with aspect ratio presets, drag-to-frame controls, and direct export.
Open toolImage Watermark Tool
Add text or logo watermarks to photos, screenshots, mockups, and social images with browser-side preview and export controls.
Open toolImage Metadata Inspector
Inspect image dimensions, type, transparency, animation hints, EXIF presence, and browser readability before editing or publishing.
Open toolImage Color Picker
Pick HEX, RGB, HSL, palettes, and CSS variables from a local image or sample image in the browser.
Open toolImage Collage Maker
Combine multiple images into a simple browser-side collage grid for previews, docs, social cards, or comparison panels.
Open toolPhoto from Emoji Generator
Turn a photo into an emoji mosaic locally with density, palette, contrast, background color, and PNG download controls.
Open toolImage Average Color Tool
Calculate the average visible color of an image in the browser and copy HEX, RGB, or HSL values for design and preview work.
Open toolVideo
Compress, convert, trim, inspect, extract audio or frames, and make short GIFs without uploading media.
Video Compressor
Compress short MP4 or WebM videos under 200 MiB in the browser with ffmpeg.wasm, Discord, email, web upload, social preview presets, CRF quality, resolution, FPS, audio bitrate, and output estimates.
Open toolVideo Format Converter
Convert supported WebM and other short video inputs to H.264/AAC MP4 in the browser with quality, resolution, and audio controls. WebM/VP9 output is temporarily unavailable.
Open toolVideo Trimmer
Trim local videos in the browser with ffmpeg.wasm, start/end controls, fast stream copy, and MP4 re-encode mode.
Open toolVideo Audio Extractor
Extract audio tracks from local videos as M4A/AAC or WebM/Opus in the browser with ffmpeg.wasm.
Open toolVideo Thumbnail & Storyboard Studio
Generate 8-20 local candidate frames, select representative thumbnails, export contact sheets, and continue into image editing.
Open toolVideo Info Inspector
Inspect selected video size, duration, dimensions, aspect ratio, type, extension, and estimated bitrate with browser-side processing.
Open toolVideo to GIF Converter
Convert a short local video range to an animated GIF with width, FPS, color, and range controls.
Open toolSubtitle Time Shifter
Shift SRT or WebVTT subtitle timestamps forward or backward by seconds directly in the browser.
Open toolDeveloper tools & code generators
A deliberately small set of repeat-use formatters, code generators, data, text, and debugging utilities.
JSON Formatter
Format, minify, validate, repair common JSON issues, inspect tree paths, and copy JSON paths in your browser with browser-side processing.
Open toolCSV to JSON Converter
Convert CSV data to JSON locally with delimiter choices, optional headers, nested dot-path keys, column-count diagnostics, and downloadable output.
Open toolRegex Tester
Test JavaScript regular expressions locally with flags, match positions, capture groups, and highlighted results.
Open toolDiff Checker
Compare two blocks of text line by line in your browser and highlight added, removed, and unchanged lines.
Open toolURL Parser
Parse a full URL into protocol, hostname, port, path, query parameters, and fragment directly in your browser.
Open toolPassword Generator
Generate local random passwords with crypto randomness, symbols, length controls, ambiguous-character avoidance, and no password storage.
Open toolSmall supporting set
Word Counter and QR Code stay available for established publishing workflows without expanding AscendLab back into a general-purpose directory.
Online Word Counter
Count English words, Chinese characters, total characters, reading time, sentences, paragraphs, and social or SEO length limits in your browser.
Open toolQR Code Generator
Generate free static QR codes for URLs, text, email, phone, Wi-Fi, and vCard content with custom colors, quiet-zone controls, and PNG/SVG export.
Open toolDate-time planning
Move a local date and time by a calendar or clock-field offset, with explicit month-end and daylight saving rules.