~/tools
Tools — small, free, no signup.
Utilities I reach for often enough that I got tired of hunting for an ad-choked version of them. Each one runs entirely in your browser — nothing you paste is uploaded, logged, or stored. No accounts, no limits.
- Installment vs Cash CalculatorWork out whether paying monthly or paying upfront actually costs you less.
- JSON Formatter & ValidatorBeautify, minify, and validate JSON in your browser.
- UUID GeneratorGenerate cryptographically random UUID v4 identifiers.
- Base64 Encoder / DecoderEncode text to Base64 or decode it back — UTF-8 safe.
- URL Encoder / DecoderPercent-encode or decode URLs and query parameters.
- Unix Timestamp ConverterConvert between Unix epoch time and human-readable dates.
- Change Image Pixel SizeSet exact pixel dimensions, with or without locking the ratio.
- Bulk Image ResizerResize a whole folder of images at once and get a ZIP back.
- Compress Image to an Exact File SizeHit a hard KB limit — for upload forms that reject big files.
- Instagram Image ResizerSquare, portrait, landscape, story, and reel cover presets.
- Convert Image to WebPTrade JPEG and PNG for a format that's 25-35% smaller.
- Image Format ConverterConvert between JPEG, PNG, and WebP in either direction.
- SVG to PNG ConverterRasterise vector art at 1× to 8× with transparency intact.
- HEIC to JPG ConverterOpen the photos your iPhone insists on saving as .heic.
- Image to PDF ConverterTurn photos into a paginated PDF, one image per page.
- JPG to PDF ConverterCombine JPG photos into a single PDF document.
- PNG to PDF ConverterPut PNG screenshots and exports into a clean PDF.
- Combine Images into One PDFMerge a mixed pile of images into a single document.
- Prepare Images for FaxFlatten, sharpen, and lay a photo of a document onto clean paper.
- Circular Image CropperCrop to a perfect circle with transparent corners.
- Add Rounded Corners to ImagesSoften image corners with a radius you control.
- Add Watermark to ImageStamp text over a photo, in a corner or tiled across it.
- Image Splitter (Grid Maker)Slice an image into a grid of tiles and download them zipped.
- Favicon GeneratorA complete icon set plus a real multi-resolution .ico file.
- Image to Base64 EncoderTurn an image into a data URI, with CSS and HTML snippets.
- EXIF Metadata Viewer & RemoverSee what your photo reveals, including GPS, then strip it.