Image tools
Convert, resize, rotate, flip, compress, and inspect images
Need a tool that is not on this list? Open Contact Us and describe the job in detail: the input you have, the result you want, and how the tool should work.
Image Converter
Batch convert HEIC, DNG, PNG, JPG, WebP, GIF, or BMP to another format
Image Resizer
Resize images by pixels or percentage, keeping aspect ratio
Background Remover
Remove image backgrounds and download a transparent PNG
Image to Base64
Convert images to and from Base64 data URLs
Image Rotator
Rotate an image by 90, 180, or a custom angle
Image Flipper
Flip an image horizontally, vertically, or both
Image Quality Reducer
Lower JPEG or WebP quality and preview the new file size
Image Metadata Viewer
Read EXIF, PNG, and file metadata from an image
Image Color Picker
Click a preview to sample HEX, RGB, and HSL colours
Image Compressor
Compress an image to 10 KB, 50 KB, 100 KB, 200 KB, 500 KB, 1 MB, or a custom size
About Free Tool Mate
Free Tool Mate is a free online toolkit of browser based developer utilities for JSON, XML, SQL, YAML, text, images, PDFs, encoding, generators, and everyday calculations. Format and validate JSON, beautify SQL queries, convert XML to JSON, decode Base64 and JWT tokens, generate UUIDs and strong passwords, resize images, protect PDF files, and create printable receipts without installing software. Every tool runs entirely in your browser, so your data is never uploaded to a server. There is no sign-up, no account, and no usage cap.
Developers, testers, writers, students, and office teams use Free Tool Mate when they need a fast private workspace. Paste an API payload, open a PDF, drop a photo, or type a query and get an instant result you can copy, print, or download. Related tools sit next to each other so you can move from formatting to comparing to converting in a few clicks. The homepage filter pills jump you straight into JSON, SQL, Image, PDF, Text, or Calculators.
The catalog covers a JSON viewer, JSON beautifier, JSON compare and JSON diff, JSON Schema validator, JSONPath tester, XML formatter, XML to JSON converter, SQL formatter, SQL beautifier, SQL validator, YAML tools, Base64 encoder, URL encoder, hash generator, regex tester, timestamp and epoch converters, date and age calculators, a percentage calculator, a unit converter, image converter and resizer, a PDF editor, PDF merge, PDF split, PDF compress, PDF password protection, PDF unlock, and receipt generators. Search engines can read this page as a hub for free online developer tools.
Because processing is local, sensitive logs, access tokens, contracts, salary slips, and photos never leave your device. Bookmark the homepage and return whenever you need a free JSON formatter, SQL validator, PDF editor, image converter, or text counter. If you need a tool that is not listed yet, open Contact Us and describe the job in detail so we can consider adding it. Free Tool Mate is built to be useful every day: quick, private, and ready in the browser you already have.