Converters, calculators, generators and editors. Every tool runs in your browser: your files never leave your device.
Convert images instantly, with quality control and transparency fill.
Payment, full amortization schedule, charts and extra-payment math.
Shrink PDFs in your browser, the file never uploads.
Body mass index with honest context, not just a number.
Spot every change between two texts, side by side.
Validate, format and inspect structure before you trust a blob.
Increase, decrease, reverse VAT: the three classic questions.
Celsius, Fahrenheit and Kelvin, exact in every direction.
This category collects the image-editing jobs that break up…
139 toolsDeveloper Tools gathers the browser-based utilities engineers reach for…
97 toolsDate and time tools convert between calendar formats, clock…
95 toolsNumber tools cover the integer and decimal work that…
84 toolsText Tools collects the browser utilities a writer, editor,…
84 toolsDocument tools handle the conversion and inspection jobs that…
51 toolsEncoding tools convert text between the formats APIs, browsers,…
48 toolsMath & Science collects browser-based calculators and generators for…
45 toolsUnicode tools handle the 154,998 characters Unicode 15.1 defines,…
42 toolsHex tools cover the gaps between hexadecimal and every…
37 toolsGenerators cover the jobs where a developer, tester, or…
36 toolsUTF-8 decoders handle the jobs where you have a…
33 toolsASCII tools handle the text-to-byte conversion work that sits…
31 toolsDraw classic fractals directly in your browser: Koch snowflakes,…
29 toolsSeven browser-based SEO utilities for generating meta tags, sitemap…
28 toolsWebP tools cover the WebP-specific editing jobs where staying…
28 toolsData tools format, convert, and validate the structured payloads…
26 toolsJSON tools handle the inspection and preparation work that…
24 toolsMarketing tools cover the link-hygiene and campaign-tracking jobs that…
18 toolsFour browser-based utilities for password generation, cryptographic hashing, AES…
15 toolsUnit and measurement converters for everyday and technical work:…
15 toolsCalculators for the money decisions people actually face: mortgage…
10 toolsHealth and fitness calculators built on the published formulas:…
5 toolsCompress an image for free in your browser to shrink the file while keeping it sharp,…
image-guidesThe best free online WebP tools to convert to and from WebP, compress, edit, and handle…
GuideA chmod cheat sheet for Unix file permissions: the number system, common values like 644 and…
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