75 free online tools to merge, split, compress, convert, edit, sign, protect and more. No downloads, no watermarks — just fast results right in your browser.
Combine PDFs in the order you want with the easiest PDF merger available.
Split a PDF into multiple files. Extract pages or split at custom ranges. Free online PDF splitter.
Sort pages of your PDF file however you like. Delete pages, reorder, or rearrange with drag and drop.
Rotate your PDF pages online for free. Rotate all pages or specific angles. No download required.
Remove unwanted pages from your PDF online for free. Select and delete pages instantly.
Extract specific pages from your PDF into a new document. Free online tool.
Add page numbers to your PDF documents online for free. Choose position and format.
400Tools is a small independent team building free, privacy-first PDF tools that run in your browser. Learn about our mission, values, and the people behind the tools.
Remove the background from any image online for free. AI-powered, runs in your browser, outputs transparent PNG. No sign-up required.
Contact the 400Tools team: support questions, feedback, security vulnerability reports, and business inquiries. We read and reply to every message.
Make animated GIFs from JPG, PNG and WebP images online for free. Reorder frames, set speed and size — runs in your browser.
NewGenerate favicons from any image online for free. Creates favicon.ico, Apple touch icons and all standard PNG sizes.
NewPick exact colors from any image online for free. Get HEX, RGB and HSL values and extract the dominant color palette.
NewCreate memes from any image online for free. Add classic top and bottom text, customize font and colors, download as PNG.
NewCreate QR codes online for free. URLs, text, WiFi, email and phone — custom size, colors and error correction.
NewScan QR codes from any image online for free. Upload a photo or screenshot and instantly decode URLs, text, WiFi and more.
NewCreate barcodes online for free. Code 128, Code 39, EAN-13, EAN-8, UPC-A and more. PNG and SVG download.
NewGenerate a WiFi QR code online for free. Guests scan once and connect automatically — WPA, WEP or open networks.
NewFormat, minify and validate JSON online for free. Pretty-print with custom indentation, sort keys and spot errors instantly.
NewConvert JSON to CSV online for free. Flatten arrays of objects into clean CSV with custom delimiters.
NewConvert CSV to JSON online for free. Auto-detects delimiters, quoted fields and headers. Objects or arrays output.
NewConvert XML to JSON online for free. Handles attributes, repeated elements and text nodes — pretty-printed output.
NewEncode and decode Base64 online for free. Text and files, standard and URL-safe alphabets.
NewEncode and decode URLs online for free. Percent-encoding for query strings, paths and full URLs.
NewGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes online for free. Text and files — nothing is uploaded.
NewGenerate random UUID v1 and v4 identifiers online for free. Bulk mode up to 1000 — nothing is uploaded.
NewTest JavaScript regular expressions online for free. Live matches, capture groups and common presets — nothing is uploaded.
NewMinify HTML online for free. Collapse whitespace, strip comments and optional attributes with size stats — nothing is uploaded.
NewMinify CSS online for free. Remove comments, collapse whitespace and shorten hex colors with size stats — nothing is uploaded.
NewMinify JavaScript online for free. Strip comments and collapse whitespace with a string-aware scanner — nothing is uploaded.
NewFormat SQL online for free. Pretty-print queries with uppercase keywords, clause breaks and indentation — nothing is uploaded.
NewConvert Markdown to HTML online for free. Headings, lists, tables, code blocks and links with live preview — nothing is uploaded.
NewConvert YAML to JSON online for free. Nested maps, lists, inline arrays and block strings — pretty-printed output, nothing is uploaded.
NewCount words, characters, sentences and paragraphs online for free. Reading time, speaking time and top words — instant live counts.
NewCount characters online for free — with and without spaces, letters, digits, symbols and lines. Limit presets for tweets and SMS.
NewConvert text case online for free — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more. Instant and private.
NewReverse text online for free — characters, words, lines or sentences. Instant live preview, copy and download.
NewCreate clean, SEO-friendly URL slugs from any title. Choose separator, strip stop words, transliterate accents and cap the length.
NewGenerate SEO meta tags, Open Graph and Twitter Card HTML in seconds. Copy ready-to-paste code for your page head.
NewCheck text for plagiarism online for free. Compare against reference documents with sentence-level similarity analysis and an originality score.
NewCheck grammar online for free. Find spelling mistakes, grammar errors, punctuation problems and wordy phrases with one-tap fixes.
NewRewrite text online for free — simple, formal or casual wording, plus a shorten mode. Shuffle for different synonym variations instantly.
NewSummarize text online for free. Shorten any article to a paragraph, bullet points or key phrases with adjustable length and focus keywords.
NewCheck keyword density online for free. Analyze single words and 2–3 word phrases with live percentages and a focus-keyword health check.
NewCreate a valid XML sitemap for Google and Bing from your page list. Set change frequency, priority and lastmod, then download.
NewCreate a robots.txt file online for free. Allow and disallow rules per user-agent, sitemap link and crawl delay — ready to upload.
NewCompress video files online for free. Shrink MP4, WebM and MOV by lowering quality and resolution, with optional trim — nothing is uploaded.
NewConvert video to animated GIF online for free. Choose FPS, width and quality, trim the clip — runs in your browser.
NewConvert audio files online for free. MP3, WAV, OGG, M4A and FLAC to MP3 or WAV — pick bitrate, sample rate and mono/stereo.
Resize images online by pixels or percentage for free. Batch resize JPG, PNG and WebP with aspect ratio lock — no upload required.
Compress PDF files online for free. Reduce file size while maintaining quality.
Repair a damaged PDF and recover data from a corrupt PDF file online for free.
Extract text from scanned PDFs using OCR. Make your scanned documents searchable and selectable.
Transform your PDF into PDF/A, the ISO-standardized version of PDF for long-term archiving.
Compress JPG, PNG and WebP images online for free. Reduce file size while keeping great quality — everything runs in your browser.
Convert PDF files to editable Word documents (DOC/DOCX) online for free.
Convert Word documents (DOC/DOCX) to PDF online for free. No software needed.
Convert PDF files into editable PowerPoint presentations online for free.
Convert PowerPoint presentations (PPT/PPTX) to PDF online for free.
Extract tables from PDF into Excel spreadsheets online for free.
Convert Excel spreadsheets (XLS/XLSX) to PDF online for free.
Convert each PDF page into a JPG image online for free. High quality export.
Convert JPG, PNG, and other images to PDF online for free. Adjust order and margins.
Convert HTML content or web pages to PDF online for free.
NewConvert PDF documents to Markdown files online. Perfect for AI pipelines and LLMs.
Decode Base64 strings or data URIs back into images online for free. Preview and download JPG, PNG, WebP or GIF instantly — nothing is uploaded.
Convert HEIC/HEIF photos to JPG online for free. Perfect for iPhone photos — batch convert in your browser, no software needed.
Convert images to Base64 strings or data URIs online for free. Embed JPG, PNG and WebP images directly in HTML, CSS and code.
Convert JPG, PNG and other images to scalable SVG vectors online for free. Adjustable color count and detail — runs entirely in your browser.
Convert PNG images to JPG online for free. Batch convert with adjustable quality — transparency flattened onto white. Runs in your browser.
Convert SVG files to high-quality PNG images online for free. Custom output size, transparency preserved. No upload required.
Convert WebP images to PNG online for free. Preserve transparency and full quality — batch convert in your browser.
Edit PDF files online: add text, images, and shapes to your PDF documents for free.
Sign PDF documents online for free. Draw or type your signature and place it on the PDF.
Add a text or image watermark to your PDF documents online for free.
Crop the margins of your PDF documents online for free. Adjust visible area.
Redact text or graphics to permanently remove sensitive information from a PDF.
NewFill PDF form fields automatically or create interactive fillable PDF forms online.
Crop images online for free. Drag-and-drop cropping with aspect ratio presets for JPG, PNG and WebP — processed in your browser.
Remove password protection from PDF files online. Unlock your PDFs instantly.
Protect your PDF files with a password online for free. Encrypt PDF documents.
NewQuickly summarize PDFs online using AI. Get key points from articles, research papers, and reports.
NewTranslate your PDF files online. Preserve layout and formatting while translating content.
Compare two PDF documents and spot differences between versions online for free.
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