Tool Directory
Free Online Practical Tools
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Batch Generate Word From Excel Online For Free
This online tool supports batch generation of Word documents based on Excel content, with download support. Rich templates available for awards, certificates, transcripts, etc. All data and processing are done locally in the browser, ensuring privacy.
Online Free Word File Merge Tool
Merge multiple Word documents into a single file while preserving original formatting and styles. Support drag-and-drop sorting, completely online processing, data is not uploaded to servers, safe and private.
Free Online Word Split Tool
Split one Word document by single page, odd/even pages, page range, fixed page count, page breaks, or Heading 1 sections. Supports custom output naming rules and fully local browser processing.
Free Online PDF Merge Tool
Merge multiple PDF files into a single document while keeping original pages and layout. Supports drag-and-drop sorting and fully local browser processing.
Free Online PDF Split Tool
Split one PDF by single page, odd/even pages, page ranges, fixed page count, page-break mode (same as single-page for PDF), or Heading 1 mode (bookmarks). Supports custom naming and fully local processing.
Court Delivery PDF Downloader
Paste a People's Court Online Service delivery link, read all PDF documents in that delivery batch, show first-page thumbnails, and download one file, a ZIP package, or one merged PDF.
Free Online Image to PDF Tool
Upload multiple JPG, PNG, or WebP images, reorder them, choose page size and fitting, merge them locally into one PDF, and add page numbers.
Free Online Image Compression Tool
Batch compress JPG, PNG, and WebP images. Auto convert to WebP, adjust quality and maximum size, and process locally in your browser.
Free Online Image Background Remover
Remove backgrounds from JPG, PNG, and WebP images with AI, batch export transparent PNG files, preview results, and download one image or a ZIP file.
Free Online Image Blur and Redaction Tool
Upload an image, select private areas, and apply mosaic, blur, black box, white box, or custom color redaction for faces, phone numbers, addresses, license plates, and screenshots.
Free Online Image Compare Tool
Compare two images with pixel-level diff, highlighted differences, slider comparison, threshold control, anti-aliasing ignore, and visual regression statistics.
Free Online Social Media Image Size Generator
Upload one or more images and generate social media sizes for Xiaohongshu, WeChat cover, Twitter/X, YouTube, OpenGraph, and more with crop, contain, preview, and batch download.
Free Online Image Grid Splitter
Split one image into a Xiaohongshu nine-grid, Instagram 3x3 profile grid, or 3x1 panorama tiles with cover crop, contain padding, focus control, preview, and ZIP download.
Free Online Image Color Palette Extractor
Upload an image to extract dominant colors and palettes with HEX, RGB, HSL, CSS variables, and JSON for design, frontend development, marketing, and brand color work.
Free Online SVG to PNG / JPG Converter
Convert SVG to PNG or JPG online with SVG upload, pasted SVG source, custom size, scale, background color, and JPG quality using local browser Canvas export.
Free Online Batch Image Crop Tool
Batch crop JPG, PNG, and WebP images with percentage-based edge cropping or fixed aspect ratio cropping. Good for mixed image sizes with fully local browser processing.
Free Online HEIC to JPG Converter
Batch convert iPhone HEIC and HEIF photos to JPG, PNG, or WebP with quality compression, maximum side limit, preview, single download, and ZIP export. Local browser processing with no server upload.
Free Online Image Format Converter
Batch convert JPG, PNG, WebP, and AVIF images. Supports PNG to JPG, JPG to WebP, and WebP to PNG with local browser processing.
Free Online Batch Image Resize Tool
Batch resize JPG, PNG, and WebP images with exact width and height, proportional fit resizing, or percentage scaling. Local browser processing with no server upload.
Free Online Image Watermark Tool
Batch add text watermarks or logo watermarks to JPG, PNG, and WebP images. Supports opacity, rotation, position, tiling, and ZIP download with local browser processing.
Free Online Target Size Image Compressor
Batch compress JPG, PNG, and WebP images to a target KB or MB size. Supports automatic quality adjustment, optional downscaling, single download, and ZIP export with local browser processing.
Free Online Image Metadata Viewer and Editor
Upload JPG, PNG, WebP, AVIF, HEIC, HEIF, and TIFF images to inspect EXIF, IPTC, XMP, ICC, and other metadata, then edit common JPEG EXIF fields and export locally.
Free Online Favicon Generator
Upload a PNG, JPG, or WebP image and generate favicon.ico, apple-touch-icon, Android icons, and multiple favicon PNG sizes with ZIP download.
Free Online CSS Sprite Generator
Batch upload PNG, WebP, or JPG icons, merge them into sprite.png, and generate accurate CSS background-position coordinates plus a JSON manifest.
Free Online PDF Page Delete, Rotate, and Reorder Tool
Upload a PDF, preview page thumbnails, drag to reorder pages, delete unwanted pages, rotate page orientation, and export a new PDF locally in your browser.
Free Online PDF to Image Converter
Upload a PDF and export every page as JPG or PNG images. Stable PDF page image export for contracts, invoices, and reports with local browser processing.
Free Online PDF Compression Tool
Batch compress PDF size online with text-preserving and smaller-file modes. Local browser processing with no server upload.
Free Online Add Images to PDF Tool
Upload a PDF and insert one or more images from a specified page position. Auto arrange multiple images per page or use one image per page, with optional page numbers.
Free Online Add Signature Image to PDF Tool
Upload a PDF and a signature image, remove the signature background in the browser, drag and resize the signature on any page, then export a signed PDF locally.
Free Online PDF Watermark Tool
Upload a PDF and add text watermarks or image watermarks online with opacity, rotation, position, and page range controls. Local browser processing with no server upload.
Free Online PDF Page Number Tool
Batch add page numbers to PDF files with position, style, font size, color, starting number, and custom page range controls. Local browser processing with no server upload.
Free Online PDF Password Protect Tool
Add an open password to PDF files online. Supports batch PDF encryption, user password and owner password settings, with local browser processing and no server upload.
Free Online PDF Eraser Tool
Upload a PDF, select any area, erase or cover it with a white block, move and resize the region, and export a new PDF locally in your browser.
Free Online PDF Print Orientation Fixer
Fix scanned PDFs that look portrait on screen but print sideways or landscape. Flatten page rotation so the printed result matches what you see in the viewer. Local browser processing.
Free Online Excel Column Comparison Tool
Compare two columns from one Excel file or two Excel files, find values in both columns, A-only values, and B-only values, with trim-space and containment matching.
Free Online Excel Deduplication Tool
Upload Excel, deduplicate by one column or multiple columns, find duplicate rows, and export deduplicated rows, duplicate rows, and duplicate value statistics. Local browser processing.
Free Online Excel Field Cleaning Tool
Clean messy Excel data in batch: trim spaces, remove all spaces, convert full-width characters, change case, remove line breaks and invisible characters, normalize date formats, and validate phone, ID, and email formats.
Free Online Excel Column Merge and Split Tool
Upload Excel to merge multiple columns into one column, split one column by comma, space, newline, tab, or custom delimiters, and extract name, phone, and address fields. Local browser processing.
Free Online CSV / Excel to JSON Converter
Convert Excel to JSON, CSV to JSON, and JSON / JSONL to Excel. Use the first row as field names, copy results, and download files with local browser processing.
Free Online Excel / CSV Batch QR Code Generator
Upload Excel or CSV data, choose one content column and one title column, then batch export printable QR code cards as PNG, SVG, or PDF with automatic names and numbering. Local browser processing.
Free Online Text Diff Tool
Compare two pieces of text online with line-by-line and word-level differences. Useful for code, copywriting, contracts, config files, and Markdown documents with local browser processing.
Free Online JSON Diff Tool
Compare two JSON objects online with validation, pretty formatting, key sorting, side-by-side diff, and TXT report export for API payloads, config files, and structured data.
Free Online CSV Diff Tool
Compare two CSV or TSV files online with delimiter detection, header toggle, cell trimming, side-by-side diff preview, upload support, and TXT report export for spreadsheet-like data.
Free Online Word Counter
Count Chinese characters, English words, characters, paragraphs, sentences, reading time, and social media length limits for SEO, marketing copy, articles, and social posts.
Free Online Text Dedupe and Line Deduplication Tool
Remove duplicate text lines online with empty-line removal, trim, case sensitivity, keep-order output, and duplicate statistics for lists, keywords, URLs, emails, and logs.
Free Online YAML JSON Converter
Convert YAML to JSON or JSON to YAML online with auto detection, formatting, compact JSON, copy, and download for developer configuration files.
Free Online JWT Decoder
Decode JWT Header and Payload locally, inspect exp, iat, nbf timestamps, see signature warnings, load random examples, copy JSON, and download decoded output without signature verification.
Free Online China Retirement Age Calculator
Calculate your retirement age based on your birth date and gender. The calculator takes into account the national retirement age policy changes in China.
Free Online Loan Rate Calculator
Calculate the monthly payment, total interest, and total repayment amount for different loan repayment methods and interest rates. Compare the total interest for different repayment methods and interest rates to help you clearly see the interest difference.
China IIT Calculator (Monthly + Annual Forecast)
Enter gross monthly salary, personal social insurance and housing fund, and special additional deductions to estimate monthly IIT and full-year tax.
Online BarChartRace Generation Tool
This page provides a handy dynamic racing chart maker that allows you to easily upload data, customize the time, type, and data columns, and then generate beautiful dynamic racing bars, which can also be exported as GIFs.
Free Online Image Subtitle Stitching Tool
Use this online tool to easily add beautiful captions to your pictures. You can customize the font, size, color, and position of the subtitle. You can also add gradient backgrounds and special effects. No software download required, process images in your local browser, free and safe.