Free Online Tech Tools
Get everyday tech jobs done. Resize images, organise PDFs, work with text, generate passwords and check your devices directly in your browser.
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Image & file tools
Image Upload Size & Format Fixer Online
Fit an image to an upload portal’s dimensions, file format, and maximum size.
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Batch Image Resizer Online
Resize a set of images to fit a consistent bounding box.
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Bulk File Rename Planner Online
Preview consistent filenames and download renamed copies together.
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Image Format Converter Online
Convert images to PNG, JPEG, or WebP in your browser.
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Image Compressor Online
Create smaller JPEG or WebP copies and compare their file sizes.
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Image Cropper Online
Crop a precise rectangular region using pixel coordinates.
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Image Metadata Viewer & Remover Online
Inspect basic image details and JPEG EXIF fields, then create a clean pixel copy.
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Image Contact Sheet Maker Online
Arrange image thumbnails into a numbered contact sheet.
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JPG, PNG & WebP to PDF Converter Online
Turn JPG, PNG and WebP images into a PDF with adjustable order, rotation and page size.
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Merge PDF Files Online
Combine PDF files in the order you choose.
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Split PDF Files Online
Extract page ranges into separate PDF files.
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PDF Page Organiser Online
Reorder, rotate and remove PDF pages.
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Add Page Numbers to PDF Online
Add page numbers with a choice of position and starting number.
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QR Code Generator Online
Create QR codes for links, text, Wi-Fi access and contact details.
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Barcode Generator Online
Create CODE128, CODE39, EAN-13, EAN-8 and UPC barcodes.
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File Checksum Calculator Online
Calculate SHA-256, SHA-384 or SHA-512 for a local file.
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Duplicate File Finder Online
Find identical file contents using SHA-256 fingerprints.
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ZIP File Creator & Extractor Online
Pack files into a ZIP archive or extract an existing ZIP locally.
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Text Difference Checker Online
Compare two texts and review line additions and removals.
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Text Cleaner Online
Tidy whitespace, empty lines and repeated lines in pasted text.
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SRT & VTT Subtitle Converter Online
Convert SRT and WebVTT subtitles, shift timing and check overlaps.
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JSON Formatter & Validator Online
Validate JSON and format or minify it.
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URL Encoder & Decoder Online
Encode or decode URL components or complete URLs.
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Base64 Encoder & Decoder Online
Encode UTF-8 text or files and decode Base64 locally.
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HTML Entity Encoder & Decoder Online
Encode HTML-sensitive characters or decode HTML entities.
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JavaScript Regex Tester Online
Test JavaScript regular expressions with match positions and capture groups.
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Markdown Preview & HTML Export Online
Preview a safe subset of Markdown and export HTML.
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Password & Passphrase Generator Online
Generate random passwords and memorable random-word passphrases locally.
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Webcam Test Online
Preview a camera and optionally record a short silent video.
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Keyboard & Mouse Test Online
Check key presses, pointer buttons and scrolling in an active test area.
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Dead Pixel & Screen Test Online
Inspect your screen with solid colours and static patterns.
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Browser Capability Checker Online
Inspect local browser APIs and declared media-format support.
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Image Colour Palette Extractor Online
Extract dominant colours and download a palette from an image.
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Image Colour Picker Online
Click an image pixel to read its exact RGBA and HEX colour.
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SVG to PNG Converter Online
Convert a safe, self-contained SVG to PNG at your chosen dimensions.
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Add Watermark to Image Online
Add a text watermark to an image and download a PNG.
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Image Print Size Calculator Online
Calculate print dimensions in inches and centimetres from pixels and DPI.
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Add Watermark to PDF Online
Add a text watermark to every page of a PDF.
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PDF Metadata Editor Online
Inspect, edit or clear standard PDF document information fields.
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PDF Page Size Converter Online
Fit PDF page content proportionally to A4, Letter or custom page dimensions.
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