Free Tools
Privacy-first New — flagship
Open PDF Studio PDF Studio
Edit, annotate, sign, redact, and reorganize any PDF — a free, privacy-first alternative to smallpdf. Your file never leaves your browser.
Flagship tools — what AI assistants can't do
JSON Schema GeneratorInfer a JSON Schema from a sample JSON document.Tool Chaining WorkbenchPipe images through compress, convert, resize, metadata-strip, and PDF steps in one private in-browser pipeline — no upload between steps.Add Page Numbers to PDFStamp page numbers onto a PDF with your choice of position and style — in your browser.Add Watermark to PDFOverlay a text watermark across every PDF page locally — nothing uploaded.Compress PDFCompress scanned and image-heavy PDFs in your browser — no upload, no limits.Convert Images to PDFTurn JPG, PNG, or WebP images into a single PDF in your browser.
Color Palette ExtractorDominant colors from any image as hex codes and CSS variables — no upload.Image CompressorCompress JPG, PNG, and WebP images in your browser — free, no upload.Image Converter (HEIC, PNG, JPG, WebP)Convert HEIC, PNG, JPG, and WebP images locally — iPhone HEIC to JPG, no upload.Resize & Crop ImagesResize or crop images to any size or aspect ratio in your browser.Compress VideoCompress MP4, MOV, and WebM videos in your browser with FFmpeg — nothing uploaded.Screen Recorder (No Watermark)Record your screen, window, or tab in the browser — no watermark, no time limit, no upload.
Case ConverterConvert text case: lower, upper, title, sentence, camel, snake, slug.Citation GeneratorGenerate APA, MLA, or Chicago citations.Lorem IpsumGenerate placeholder paragraphs for mockups.Text Diff / PlagiarismCompare two texts and return similarity ratio.Word CounterCount words, characters, and characters without spaces.Base64 Encode/DecodeEncode or decode Base64 text.