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Short, honest guides. Every article links to the free browser tool that does the job.
Common tasks
Convert PDF → JPG / PNG imagesConvert JPG / PNG → PDFConvert HEIC → JPGConvert HEIC → PNGConvert PNG → JPGConvert JPG → PNGConvert WebP → JPGConvert WebP → PNGConvert PNG → WebPConvert JPG → WebPConvert YAML → JSONConvert CSV → JSONConvert Markdown → HTMLConvert SVG → PNGConvert PNG → SVGConvert PNG → AVIFConvert JPG → AVIFConvert AVIF → JPGConvert MP4 → GIFConvert MP4 → MP3Convert MP4 → WAV audioConvert PDF → Word (.docx)Convert Word (.docx) → PDFConvert JSON → CSVConvert PNG → PDFConvert HEIC → JPG on WindowsCompress PDF → 100 KBCompress PDF → 200 KBCompress PDF → 1 MBCompress JPG / PNG → 50 KBCompress JPG / PNG → 100 KBResize JPG / PNG → Passport (35 × 45 mm, 300 DPI)Resize JPG / PNG → Instagram (1080 × 1080)Resize JPG / PNG → WhatsApp (640 × 640)
- Free online PDF tools: choose the right toolPractical PDF workflows, tool choices and honest quality limits — merge, compress, convert and edit pages.
- Every common file format, explainedPDF, DOCX, HEIC, WebP, AVIF, EPUB, and 30+ more — what they're for and when to convert.
- How to compress a PDF (without losing quality)Learn what makes a PDF large and how to reduce its size without making it look worse.
- How to resize an image the right wayChoose the right pixel size, keep images sharp and pick the best file format.
- Image to text that actually works: a practical guidePrepare photos and scans for better text results, then clean up common mistakes.
- WebP vs AVIF — which should you use?File size, browser support, encode speed — and when each format wins.
- Reduce a PDF for email attachmentsGmail 25 MB, Outlook 20 MB — how to reliably fit any PDF under the limit.
- HEIC to JPG: how to convert iPhone photosWhy Windows can't open HEIC, how to stop making them, and the fastest free ways to convert.
- How to compare two texts onlineFind changed lines, extra spaces, different quotation marks and other hard-to-see differences.
- How to merge PDF files for free (no upload)Combine documents in the right order, and why merged files get bigger than you expect.
- How to split a PDF or extract pagesRanges, deleting pages, single-page exports — and which tool fits each job.
- How to open and convert Visio (.vsdx) files without VisioOpen a Visio diagram for free in your browser and save it as PDF, PNG or SVG — no licence needed.
- How to trim and cut audio online without uploadingCut a clip from an MP3, WAV or voice note in your browser — your audio never leaves your device.
- How to convert DWG to PDF without AutoCADOpen a CAD drawing in your browser and save it as a PDF or image — no software to install.
- Images to PDF (and PDF back to images)Turn photos and scans into one PDF, or export every page as a PNG — both directions, offline.