免費線上工具
370+ free online tools for PDF, images, SEO, developers, color, and productivity. Fast, browser-based, and private — no signup, no installs, no limits. Search above or browse by category below.
Total tools37010.7K total uses
Categories15Active categories
Most usedJSON Formatter4.1K uses
Recently addedVS Code Extensions StoreNewest tool
Voice Recorder
Free online voice recorder — record audio from your microphone and download as WAV or WebM. Private, browser-based, no signup or watermark.
Used 0 times•Updated never
Audio Joiner Merger
Free online audio joiner and merger — combine multiple MP3, WAV, or M4A files into one track in your browser. No upload, no signup, private.
Used 0 times•Updated never
Waveform Visualizer
Free online waveform visualizer — see the amplitude shape of any audio file in your browser. Zoom, scrub, and export a PNG. Private, no signup.
Used 0 times•Updated never
White Noise Generator
Free white noise generator — play white, pink, or brown noise for focus, sleep, or masking. Adjustable volume, private Web Audio in your browser.
Used 0 times•Updated never
Pitch Speed Changer
Free online pitch and speed changer — slow down, speed up, or shift pitch of any audio file in your browser. Private, no upload, no signup.
Used 0 times•Updated never
Image to Animated Wallpaper
Free image to animated wallpaper converter — add breeze, petals, clouds, and sparkle motion to any photo and export for reels. Runs in your browser.
Used 0 times•Updated never
SVG Viewer
Free online SVG viewer — paste or upload SVG markup to preview with zoom, pan, source inspect, and safe client-side rendering.
Used 0 times•Updated never
Icon Format Converter
Free online ICO to PNG / SVG icon converter. Convert favicons and icons between ICO, PNG, SVG, WOFF, JPG, WebP, GIF, BMP — plus multi-size packs.
Used 0 times•Updated never
React Icon to SVG Converter
Free React icon to SVG converter — paste JSX or pick a Lucide icon, live preview, download SVG or multi-size ICO favicons.
Used 0 times•Updated never
HEIC to JPG PNG Converter
Free HEIC to JPG/PNG converter for iPhone photos. Convert HEIC/HEIF to JPEG or PNG in your browser — batch, preview, no server upload.
Used 0 times•Updated never
EXIF Metadata Stripper
Free EXIF metadata stripper — remove GPS location, camera model, and photo metadata in your browser. Privacy-first, nothing uploaded.
Used 0 times•Updated never