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搜索完整的 ToolFlow 工具库。每个工具都有独立页面、专注的界面和可索引的说明。

MP4 to MP3Extract MP3 audio from an MP4 video while discarding the video stream, ideal for interviews, music clips and spoken recordings.视频
Extract FramesExport still JPG frames from a video at a time interval you choose and download the result as a ZIP archive.视频
Compress VideoReduce MP4 video file size with H.264 compression and web-friendly audio settings while keeping practical viewing quality.视频
PDF to WordConvert a PDF document to an editable DOCX file when LibreOffice conversion is available on the server.PDF 与文档
Image UpscalerEnlarge JPG, PNG or WebP images by 2×, 3× or 4× using high-quality resampling without changing the original file.图片
Website Speed TestMeasure DNS, connection, TLS, time to first byte and total response time for a public website URL.Web 与开发
QR GeneratorCreate a QR code from a URL or short text when the QR backend module is enabled on the server.Web 与开发
MOV to MP4Convert Apple QuickTime MOV video to H.264/AAC MP4 for easier playback in browsers, phones and common media players.视频
WebM to MP4Convert WebM video to broadly compatible MP4 using H.264 video and AAC audio.视频
Video to GIFTurn a short video clip into an animated GIF suitable for lightweight previews, reactions and embedded content.视频
Trim VideoCut a video by choosing a start time and duration, then download only the segment you need.视频
Mute VideoRemove the audio track from a video while preserving the video stream whenever the source format allows it.视频
Rotate VideoRotate a video 90°, 180° or 270° and export a corrected MP4 file.视频
Video MetadataInspect video and audio streams, codecs, duration, bitrate, resolution and container metadata with FFprobe.视频
WAV to MP3Convert uncompressed WAV audio to compact MP3 for easier sharing and smaller storage requirements.音频
MP3 to WAVConvert MP3 audio to PCM WAV for editors, DAWs and workflows that prefer uncompressed audio.音频
M4A to MP3Convert M4A audio to MP3 for wider compatibility with players, devices and publishing systems.音频
Audio NormalizerNormalize perceived loudness in an audio file to produce more consistent playback levels.音频
Extract AudioExtract the soundtrack from a video and save it as a standalone MP3 file.音频
Audio MetadataInspect codec, sample rate, channels, duration, bitrate and container information from an audio file.音频
JPG to PNGConvert JPG photographs and graphics to PNG while preserving image dimensions.图片
PNG to JPGConvert PNG images to JPG, flattening transparency onto a white background for broad compatibility.图片
WebP to JPGConvert WebP images to JPG for software and platforms that do not accept WebP.图片
JPG to WebPConvert JPG images to WebP for modern web delivery and potentially smaller image files.图片
Resize ImageResize an image to an exact width and optional height, with proportional height calculated automatically when omitted.图片
Compress ImageCreate a smaller JPG version of an image using a balanced compression setting for web and sharing.图片
Image MetadataRead image width, height, MIME type and file size without changing the uploaded image.图片
Merge PDFCombine multiple PDF documents into one ordered PDF when the server PDF merge module is available.PDF 与文档
Split PDFSeparate pages from a PDF into individual files when the server PDF split module is enabled.PDF 与文档
Compress PDFOptimize a PDF to reduce file size when the server-side PDF compression module is enabled.PDF 与文档
PDF to TextExtract selectable text from a PDF document into a plain UTF-8 text file using pdftotext.PDF 与文档
Word CounterCount words, characters, characters without spaces, lines and estimated sentences in pasted text.文本
Case ConverterChange pasted text to uppercase, lowercase, title case or sentence case in one step.文本
Slug GeneratorTurn a title or phrase into a lowercase, hyphen-separated URL slug suitable for clean web addresses.文本
Base64 EncoderEncode plain text as Base64 or decode a valid Base64 string back to readable text.文本
URL EncoderPercent-encode URL components for safe transport or decode encoded URL text back to its readable form.文本
JSON FormatterValidate JSON and reformat valid data with readable indentation while preserving Unicode characters and URLs.Web 与开发
UUID GeneratorGenerate a cryptographically random RFC 4122 version 4 UUID for identifiers, testing and development.Web 与开发
Hash GeneratorGenerate SHA-256 and SHA-512 hashes from text for checksums, comparisons and development tasks.Web 与开发
Password GeneratorGenerate a 24-character cryptographically secure password using letters, numbers and common symbols.Web 与开发
DNS LookupLook up public A, AAAA, CNAME, MX and TXT DNS records for a hostname.Web 与开发
HTTP HeadersInspect response headers returned by a public HTTP or HTTPS URL without following redirects.Web 与开发
Social Image ResizerResize one image for multiple social platforms with selectable presets for Instagram, Facebook, LinkedIn, X, YouTube, Pinterest, TikTok, WhatsApp and Twitch.社交媒体
Thumbnail ResizerCrop and resize an image to a 1280 × 720 landscape thumbnail format.社交媒体
Caption CleanerNormalize repeated spaces and excessive blank lines in captions or short blocks of text.社交媒体
Hashtag CleanerNormalize hashtags to lowercase, remove duplicates and return a clean space-separated hashtag list.社交媒体
AVI to MP4Convert legacy AVI video to H.264/AAC MP4 for modern browsers, phones and streaming workflows.视频
MKV to MP4Convert Matroska MKV video to MP4 for devices and platforms that prefer the MP4 container.视频
FLV to MP4Convert Flash Video FLV files to modern H.264/AAC MP4 for easier playback and archiving.视频
MPG to MP4Convert MPEG/MPG video to MP4 for modern playback, upload and sharing workflows.视频
MP4 to WebMConvert MP4 video to WebM using a browser-friendly video format designed for web delivery.视频
GIF to MP4Convert an animated GIF to MP4 for smoother playback and substantially smaller files in many cases.视频
Change Video SpeedSpeed up or slow down a video while adjusting the audio tempo to match the selected playback speed.视频
Resize VideoResize a video to a target width while preserving its aspect ratio and exporting a web-friendly MP4.视频
Video to WAVExtract a video soundtrack as uncompressed PCM WAV for editing, analysis or archival workflows.视频
FLAC to MP3Convert lossless FLAC audio to compact MP3 for portable players, sharing and everyday listening.音频
OGG to MP3Convert OGG/Vorbis audio to MP3 for software and devices with broader MP3 support.音频
AAC to MP3Convert AAC audio to MP3 for broad compatibility with players, editors and publishing systems.音频
MP3 to M4AConvert MP3 audio to M4A/AAC for workflows that prefer the MPEG-4 audio container.音频
MP3 to OGGConvert MP3 audio to OGG/Vorbis for open-format audio delivery and web projects.音频
Trim AudioCut an audio recording by start time and duration, then download only the selected segment.音频
Change Audio SpeedSpeed up or slow down audio while keeping the output within practical tempo ranges.音频
Volume BoosterIncrease audio volume by a selected multiplier and export a new MP3 file.音频
PNG to WebPConvert PNG images to WebP for modern web delivery while retaining transparency when supported.图片
WebP to PNGConvert WebP images to PNG for editing tools and workflows that require PNG.图片
BMP to JPGConvert BMP bitmap images to compressed JPG for smaller files and easier web sharing.图片
GIF to JPGConvert the first frame of a GIF image to a standard JPG with a white background.图片
Rotate ImageRotate a JPG, PNG or WebP image by 90°, 180° or 270° and download the corrected PNG.图片
Flip ImageMirror an image horizontally or vertically and export the result as PNG.图片
Grayscale ImageConvert a color image to grayscale while preserving its original dimensions.图片
Crop ImageCrop a precise rectangular area from an image using pixel coordinates and dimensions.图片
Image to Base64Encode an uploaded image as a Base64 data URI for HTML, CSS or development workflows.图片
PDF Page CountRead the total number of pages in a PDF document without changing the file.PDF 与文档
PDF MetadataInspect PDF metadata such as page count, page size, PDF version, title, author and creation fields when available.PDF 与文档
PDF to JPGRender PDF pages as JPG images and package multiple pages into a ZIP archive.PDF 与文档
Word to PDFConvert DOC or DOCX documents to PDF using LibreOffice in headless server mode.PDF 与文档
Excel to PDFConvert XLS or XLSX spreadsheets to PDF using the server-side LibreOffice conversion engine.PDF 与文档
PowerPoint to PDFConvert PPT or PPTX presentations to PDF using the server-side LibreOffice conversion engine.PDF 与文档
Character CounterCount characters with and without spaces, plus words and line breaks, from pasted text.文本
Line CounterCount non-empty and total lines in pasted text for logs, lists, code snippets and datasets.文本
Remove Duplicate LinesRemove repeated lines while preserving the first occurrence and the original order.文本
Sort LinesSort text lines alphabetically in ascending or descending order.文本
Reverse TextReverse Unicode text character by character for testing, puzzles and text manipulation.文本
Remove Extra SpacesCollapse repeated spaces and excessive blank lines while keeping readable paragraph breaks.文本
HTML Encoder / DecoderEscape HTML special characters for safe display or decode HTML entities back to readable text.文本
JSON MinifierValidate JSON and remove unnecessary whitespace to create a compact representation.文本
Redirect CheckerInspect the first HTTP redirect response and Location header returned by a public URL.Web 与开发
HTTP Status Code CheckerCheck the HTTP response status code and final response timing for a public URL.Web 与开发
Robots.txt CheckerFetch a website robots.txt file and inspect its HTTP status and current contents.Web 与开发
Sitemap CheckerFetch a public XML sitemap URL and verify the response status, content type and basic XML structure.Web 与开发
Meta Tag CheckerFetch a public web page and inspect its title, meta description, canonical URL and robots directive.Web 与开发
SSL Certificate CheckerInspect the public TLS certificate presented by an HTTPS hostname, including issuer and expiry date.Web 与开发
URL ParserBreak a URL into scheme, host, port, path, query and fragment components.Web 与开发
HTML MinifierRemove comments and unnecessary inter-tag whitespace from HTML for a more compact source document.Web 与开发
Random String GeneratorGenerate a cryptographically secure random string for temporary tokens, test values and identifiers.实用工具
Random Number GeneratorGenerate one or more cryptographically secure random integers within a range you choose.实用工具
Unix TimestampGenerate the current Unix timestamp in seconds together with the current UTC date and time.实用工具
Timestamp ConverterConvert a Unix timestamp or ISO-style date into UTC date/time and epoch representations.实用工具
File ChecksumCalculate SHA-256 and SHA-512 checksums for an uploaded file without changing its contents.实用工具
MIME Type CheckerDetect the server-reported MIME type, extension and basic file information for an uploaded file.实用工具
File Size CalculatorDisplay an uploaded file size in bytes, KB, MB and GB for quick storage and transfer calculations.实用工具
Instagram Post ResizerCrop and resize an image to 1080 × 1350 pixels for a portrait Instagram feed post.社交媒体
Instagram Story ResizerCrop and resize an image to 1080 × 1920 pixels for Instagram Stories and vertical full-screen posts.社交媒体
YouTube Thumbnail ResizerCrop and resize an image to 1280 × 720 pixels for a standard 16:9 YouTube thumbnail.社交媒体
Facebook Cover ResizerCrop and resize an image to 820 × 312 pixels for a compact Facebook cover layout.社交媒体
LinkedIn Banner ResizerCrop and resize an image to 1584 × 396 pixels for a LinkedIn profile background banner.社交媒体
Pinterest Pin ResizerCrop and resize an image to 1000 × 1500 pixels for a 2:3 Pinterest Pin format.社交媒体
X Post Image ResizerCrop and resize an image to 1600 × 900 pixels for a landscape post image on X and similar feeds.社交媒体
Instagram Square Post ResizerCrop and resize an image to 1080 × 1080 pixels for a Instagram square feed post.社交媒体
Instagram Profile Picture ResizerCrop and resize an image to 320 × 320 pixels for a Instagram profile picture.社交媒体
Instagram Reel Cover ResizerCrop and resize an image to 1080 × 1920 pixels for a Instagram vertical Reel cover.社交媒体
Facebook Post Image ResizerCrop and resize an image to 1200 × 630 pixels for a Facebook landscape feed post.社交媒体
Facebook Story ResizerCrop and resize an image to 1080 × 1920 pixels for a Facebook full-screen Story.社交媒体
Facebook Profile Picture ResizerCrop and resize an image to 320 × 320 pixels for a Facebook profile picture.社交媒体
LinkedIn Post Image ResizerCrop and resize an image to 1200 × 627 pixels for a LinkedIn landscape post image.社交媒体
LinkedIn Profile Picture ResizerCrop and resize an image to 400 × 400 pixels for a LinkedIn profile photo.社交媒体
X Header Image ResizerCrop and resize an image to 1500 × 500 pixels for a X profile header.社交媒体
X Profile Picture ResizerCrop and resize an image to 400 × 400 pixels for a X profile picture.社交媒体
YouTube Channel Banner ResizerCrop and resize an image to 2560 × 1440 pixels for a YouTube channel banner.社交媒体
YouTube Profile Picture ResizerCrop and resize an image to 800 × 800 pixels for a YouTube channel profile picture.社交媒体
TikTok Vertical Image ResizerCrop and resize an image to 1080 × 1920 pixels for a TikTok vertical image post.社交媒体
TikTok Profile Picture ResizerCrop and resize an image to 200 × 200 pixels for a TikTok profile picture.社交媒体
WhatsApp Status Image ResizerCrop and resize an image to 1080 × 1920 pixels for a WhatsApp vertical Status image.社交媒体
WhatsApp Profile Picture ResizerCrop and resize an image to 640 × 640 pixels for a WhatsApp profile picture.社交媒体
Twitch Profile Banner ResizerCrop and resize an image to 1200 × 480 pixels for a Twitch profile banner.社交媒体
Twitch Profile Picture ResizerCrop and resize an image to 256 × 256 pixels for a Twitch profile picture.社交媒体
Pinterest Profile Picture ResizerCrop and resize an image to 280 × 280 pixels for a Pinterest profile picture.社交媒体
Discord Server Icon ResizerCrop and resize an image to 512 × 512 pixels for a Discord server icon.社交媒体