All Tools
81 tools available, organized by category
Image Tools
(14)Image Compressor
FreeLocalReduce JPG, PNG, and WebP file size with quality and target-size controls.
Image Format Converter
FreeLocalConvert images between PNG, JPG, WebP, GIF, BMP, and AVIF formats.
Image Cropper
FreeLocalCrop images freely or with preset ratios for avatars, covers, and social posts.
Image Resizer
FreeLocalResize one image or batch-normalize multiple images with common platform presets.
Image Base64 Converter
FreeLocalConvert images to Base64 strings or restore Base64 data back to image files.
Image Watermark Tool
FreeServerAdd visible text or image watermarks to uploaded images.
Invisible Watermark
FreeServerEmbed a hidden watermark in an image for lightweight ownership tracking.
Invisible Watermark Detector
FreeServerExtract and check hidden watermark data from supported images.
Background Remover
FreeLocalRemove image backgrounds locally with the lightweight u2netp ONNX model and export transparent PNG files.
ID Photo Background Changer
FreeLocalCut out a portrait locally and compose common ID photo background colors and sizes.
Image OCR
FreeAIExtract text from images with OCR processing.
EXIF Viewer and Cleaner
FreeLocalView or remove image metadata such as camera, lens, and location fields.
SVG to PNG/JPG Converter
FreeLocalConvert SVG vector graphics into PNG or JPG bitmap files.
Image Collage Maker
FreeLocalJoin multiple images into a long image or grid collage.
PDF Tools
(15)PDF Visual Editor
FreeLocalPreview a PDF locally, add text, images, signatures, highlights, cover rectangles, and page edits, then export a new PDF.
PDF to Image
FreeServerConvert each PDF page into PNG or JPG images.
Image to PDF
FreeServerMerge JPG, PNG, and WebP images into a single PDF file.
PDF Merger
FreeServerCombine multiple PDF files into one document in your chosen order.
PDF Splitter
FreeServerSplit a PDF by page range or export selected pages as separate files.
PDF Compressor
FreeServerReduce PDF file size for email, uploads, and archiving.
PDF Page Rotator
FreeServerRotate all PDF pages or selected page ranges by 90, 180, or 270 degrees.
PDF Page Extractor
FreeServerExtract selected pages or page ranges from a PDF into a new PDF file.
PDF Page Number Tool
FreeServerAdd page numbers to PDF files with configurable position, format, and font size.
PDF Encryptor
FreeServerProtect a PDF with an open password for safer sharing and archiving.
PDF Decryptor
FreeServerRemove password protection from PDF files when you know the correct password.
PDF OCR
FreeAIRecognize text from scanned PDF pages and export the result as a TXT file.
PDF Delete Pages
FreeLocalRemove selected pages from a PDF locally in your browser and export a new PDF.
PDF Reorder Pages
FreeLocalRearrange PDF pages locally in your browser and export a new PDF.
PDF Watermark
FreeLocalAdd text watermarks to a PDF locally in your browser and export a new PDF.
Document Conversion
(8)Word to PDF
FreeServerConvert DOC and DOCX documents into PDF files.
PDF to Word
FreeServerConvert PDF files into editable Word documents where possible.
Excel to PDF
FreeServerConvert XLS and XLSX spreadsheets into PDF files.
Excel to Image
FreeServerConvert Excel sheets into PNG images.
PowerPoint to PDF
FreeServerConvert PPT and PPTX presentations into PDF files.
PowerPoint to Image
FreeServerConvert each presentation slide into a PNG image.
Word to Image
FreeServerConvert Word document pages into PNG images.
Spreadsheet Merge and Split
FreeLocalMerge or split CSV and TSV spreadsheet data locally in your browser.
Smart Extraction
(3)Invoice and Receipt OCR
FreeAIExtract invoice or receipt fields, line items, confidence labels, validation reports, and Excel/CSV/JSON exports.
Image to Text and Table
FreeServerExtract text and editable table data from screenshots or images, then export structured results.
手写体识别
FreeAI识别手写笔记、表单和白板内容,保留换行并提示逐行核对
Video Tools
(4)Video Compressor
FreeServerCompress videos with quality, resolution, and target-size presets.
Video Converter
FreeServerConvert videos between MP4, WebM, MOV, AVI, and other common formats.
Video to GIF
FreeServerConvert a selected video segment into an animated GIF.
Extract Audio from Video
FreeServerExtract the audio track from a video and save it as an audio file.
Audio Tools
(4)Audio Converter
FreeServerConvert audio between MP3, WAV, FLAC, AAC, and OGG formats.
Audio Compressor
FreeServerReduce audio file size by adjusting bitrate and encoding settings.
Audio Trimmer
FreeServerCut an audio file to a specific start and end time.
Audio Merger
FreeServerJoin multiple audio files into one continuous audio track.
Diagram conversion
(2)Mind Map Converter
FreeServerUpload XMind, FreeMind, OPML, Markdown, or text files and export the mind map as PDF, PNG, or SVG.
Flowchart Converter
FreeServerUpload Draw.io, Visio, Gliffy, mxGraph, Mermaid, or text files and export the diagram as PDF, PNG, or SVG.
Markdown
(4)Markdown Preview
FreeLocalPreview Markdown in real time, switch themes, generate a TOC, and export output.
Markdown to HTML
FreeLocalConvert Markdown content into a complete HTML file.
Markdown 转 PDF
FreeServer将 Markdown 导出为带样式 PDF
HTML to Markdown
FreeLocalConvert HTML snippets or pages into clean Markdown.
Developer Tools
(9)JSON Formatter
FreeLocalFormat, minify, validate, view, and compare JSON data.
Regex Tester
FreeLocalTest regular expressions with live matches, groups, templates, and replacement output.
Timestamp Converter
FreeLocalConvert Unix timestamps to readable dates and calculate timezone/date differences.
URL Encoder and Decoder
FreeLocalEncode, decode, parse, and build URLs and query strings.
Hash Generator
FreeLocalCalculate MD5, SHA-1, SHA-256, and SHA-512 hashes for text and files.
Favicon Generator
FreeLocalGenerate full-size website favicons and app icons from one image.
UUID and Password Generator
FreeLocalGenerate UUID values and random secure passwords.
JWT Decoder
FreeLocalDecode JWT headers and payloads and inspect token expiration details.
XML and YAML Formatter
FreeLocalFormat XML and convert structured data into readable YAML output.
QR Code Tools
(4)QR Code Generator
FreeLocalCreate QR codes for URLs, text, Wi-Fi, vCard, and location data.
QR Code Decoder
FreeLocalUpload an image and decode the QR code content inside it.
Barcode Generator
FreeLocalGenerate EAN, UPC, Code128, and printable barcode labels.
批量二维码生成
FreeServer批量生成多个二维码
Text Tools
(9)Word Counter
FreeLocalCount words, characters, lines, paragraphs, reading time, and keyword density.
Text Deduplicator
FreeLocalRemove duplicate lines, find near duplicates, and export a cleanup report.
Case Converter
FreeLocalConvert text and variable names between upper, lower, camel, snake, and kebab case.
Color Converter
FreeLocalConvert HEX, RGB, and HSL colors and generate palettes, gradients, and contrast checks.
Table Screenshot Maker
FreeLocalRender pasted table data into a polished PNG screenshot locally in your browser.
Table to Markdown/HTML
FreeLocalConvert table data into Markdown tables or HTML table markup.
Batch Text Replace
FreeLocalFind, replace, and compare text in bulk.
Data Masking Tool
FreeLocalDetect and mask phone numbers, email addresses, ID-like strings, and sensitive text.
Text Cleaner
FreeLocalRemove extra spaces, blank lines, mojibake-like clutter, and formatting noise.
File Security
(4)PDF 元数据清除
FreeLocal清除 PDF 文件元数据信息
文件哈希校验
FreeLocal计算文件 MD5/SHA256 哈希值
Batch File Renamer
FreeLocalRename multiple files locally with rules, preview conflicts, and download a ZIP.
图片元数据清除
FreeLocal批量清除图片 EXIF 等元数据
E-Signature
(1)E-Signature Image Maker
FreeLocalDraw and export a handwritten signature image.