Local online toolbox
Timestamp, JSON/YAML/TOML, text, encoding, image/GIF, QR code, OCR, PDF, EPUB, and emoji search tools all run locally in your browser with no uploads.
All tools
Text
8 toolsText diffHighlight differences between two text blocks.List CompareCompare two single-column lists to find unique and shared items.Markdown previewWrite Markdown on the left and preview rendered output on the right.Case converterConvert text to uppercase, lowercase, title case, or toggle case.Word counterCount words, characters, and lines in real time as you type.Line dedupRemove duplicate lines from text and keep unique entries only.Emoji pickerBrowse, search, and copy emojis by category with Unicode details.Emoji meaning finderSearch or paste an emoji to find its name, common meaning, Unicode details, and related emojis.
Conversion Tools
7 toolsTimestamp converterConvert between seconds, milliseconds, and formatted date strings.JSON formatterFormat, minify, and validate JSON input.JSON ConverterConvert JSON into CSV, YAML, TOML, or XML.YAML ConverterConvert YAML into JSON or TOML.TOML ConverterConvert TOML into JSON or YAML.Simplified to Traditional ChineseConvert Simplified Chinese to Traditional Chinese online. Supports Taiwanese vocabulary and punctuation styles. Free, no upload.Traditional to Simplified ChineseConvert Traditional Chinese to Simplified Chinese online. Supports Taiwanese vocabulary and punctuation styles. Free, no upload.
Image
7 toolsImage compressorBatch-compress JPG, PNG, and WebP images while controlling quality and size.Image format converterBatch-convert images between JPG, PNG, and WebP formats.Image resizerBatch-resize or crop JPG, PNG, and WebP images to exact dimensions.Image watermarkAdd text or image watermarks with control over position, opacity, and tiling.Solid color generatorGenerate solid color background images with custom size and color.Online doodle boardDraw or handwrite online with transparent background and PNG or SVG export.EXIF removerRemove GPS location, camera info, and other privacy metadata from photos.
PDF mergeFree online PDF merger to combine multiple PDFs into one in the order you choose.PDF split / extract pagesFree online PDF splitter to extract a page range or split into single-page files.PDF to imagesFree online PDF to image converter to render each page as PNG or JPG.Images to PDFFree online image to PDF converter to combine images into one PDF in order.PDF page organizerFree online PDF page organizer to rotate, delete, and reorder pages into a new file.PDF signature checkerVerify digital signatures in a PDF and inspect signer, certificate chain, and validity.PDF electronic signatureDraw, type, or upload a signature and place it onto any page of your PDF.PDF password protectAdd an open password to a PDF so only authorized users can open and view it.EPUB to PDFConvert EPUB ebooks to PDF online with text, images, and layout preserved. Supports Chinese, free, no file upload required.
GIF
8 toolsPetpet GeneratorTurn an avatar into a hilarious "head pat" petpet GIF.MP4 to GIFConvert MP4 clips into GIFs with trim and loop options.Images to GIFCombine multiple images into a GIF with order and frame delay.GIF ↔ MP4 converterConvert between GIF and MP4 to shrink files and improve compatibility.GIF SplitterExtract every GIF frame as PNG, with ZIP download support.GIF CropDrag to select a crop area and export a cropped GIF.GIF Speed ChangerAdjust GIF playback speed from 0.25x to 4x.GIF Text WatermarkDrag and place a text watermark on a GIF, with stroke support.
Crypto
5 toolsHash textGenerate MD5, SHA1, SHA256, SHA224, SHA512, SHA384, SHA3, and RIPEMD160 digests from text.Base64 encode / decodeEncode and decode Unicode text with Base64.Image to Base64Upload an image and generate both Data URL and raw Base64 output.Base64 to imageRender Base64 or Data URL content back into an image preview.Password generatorGenerate strong random passwords with customizable rules.