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What do you need to do?

Try: compress an image convert JSON to CSV make a QR code calculate my age convert PDF to JPG heic to jpg remove duplicate lines kg to lbs

🔒 Every tool runs in your browser — your files stay on your device.

Quick fixes

JPGPDF HEICJPG Imagesmaller image PDFJPG Big PDFsmall PDF MOVMP4 VideoMP3 VideoGIF Big videosmall video JSONCSV CSVJSON Messy listclean list URLQR code PhotoInstagram size WAVMP3

Popular tools

ImageImage CompressorReduce JPG, PNG and WebP file size in your browser with a live before/after size readout. QR CodesQR Code Generator & ScannerMake a QR code from any link or text, add a logo, or scan one with your camera. ImageImage Resizer & CropperResize and crop images to any size or social-media preset — touch-friendly, no upload. CalculatorsAge CalculatorFind your exact age in years, months and days, plus days until your next birthday. ConvertersUnit & Currency ConverterConvert length, weight, temperature, volume and live currency exchange rates. VideoVideo ConverterConvert videos between MP4, WebM, MOV and GIF in your browser — no upload, with quality and size options. PDFJPG to PDF ConverterCombine JPG and PNG images into a single PDF, in the order you choose. ImageImage Converter (JPG, PNG, WebP, HEIC)Convert images between JPG, PNG and WebP — including iPhone HEIC photos — in batches, without uploading.

Browse by category

PDF Tools

Merge, split, compress and convert PDF files

All PDF Tools »

Audio Tools

Convert, trim and extract audio

All Audio Tools »

Text Tools

Count, clean, compare and rewrite text

All Text Tools »
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Popular workflows

Image workflow: Resize → Compress → Convert → Make PDF
PDF workflow: Images → PDF → Merge → Compress → Split
JSON workflow: Format, validate & minify → JSON → CSV → CSV → JSON
Text workflow: Clean → Format case → Count
Link → QR workflow: Tag link → Make QR
Video publishing workflow: Idea → Title → Hashtags → Caption
Video workflow: Trim → Resize → Compress → Convert
Audio workflow: Extract audio → Trim → Convert

Guides for common jobs

Image · guideCompress Images for EmailShrink photos so they fit under email attachment limits, with settings tuned for Gmail and Outlook. Image · guideResize Images for InstagramCrop and resize photos to the exact Instagram sizes for posts, portrait posts, stories and reels. Image · guideResize Images for YouTubeMake YouTube thumbnails, channel banners and profile pictures at the exact recommended sizes. Image · guideHEIC to JPG ConverterTurn iPhone HEIC photos into JPG files that open everywhere — batch convert without uploading. Video · guideMP4 to WebM ConverterConvert MP4 videos to WebM (VP8/Opus) for websites and HTML5 video, right in your browser. Video · guideWebM to MP4 ConverterConvert WebM screen recordings and web videos to MP4 that plays on iPhone, Windows and editors. Video · guideMOV to MP4 ConverterConvert iPhone and QuickTime MOV videos to MP4 — usually in seconds, without losing quality.

Free tools that respect your privacy

ToolsForCools solves small, everyday computer jobs: shrinking photos for email, turning phone pictures into a PDF, converting iPhone HEIC photos to JPG, making a QR code for your Wi-Fi, converting JSON to a spreadsheet or working out exactly how old you are. Tell the search box what you need in plain words and it points you to the right tool.

Almost every tool runs entirely in your browser, so files and text never leave your device. Looking for a quick number instead? Browse the Quick Answers: unit conversions, currency tables, percentages and age by birth year.