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短而实用的指南，不凑字数。
Free Design Tools Tools — 3 Online Utilities
Color, spacing and unit converters for designers and front-end developers. Every tool below runs entirely in your browser. Nothing you type or upload is…
阅读更多 →Free Developer Tools Tools — 12 Online Utilities
Formatters, encoders, decoders and validators for everyday development work. Everything runs locally in your browser. Every tool below runs entirely in…
阅读更多 →Free Image Tools Tools — 4 Online Utilities
Compress, resize and generate images without uploading anything to a server. Every tool below runs entirely in your browser. Nothing you type or upload is…
阅读更多 →Free Math & Calculators Tools — 3 Online Utilities
Percentages, geometry, dates and unit conversions with the working shown. Every tool below runs entirely in your browser. Nothing you type or upload is…
阅读更多 →Free Security Tools Tools — 3 Online Utilities
Generate passwords and hashes locally. Nothing is logged, stored or transmitted. Every tool below runs entirely in your browser. Nothing you type or upload…
阅读更多 →Free Time & Dates Tools — 2 Online Utilities
Convert between Unix timestamps, ISO dates and human-readable time. Every tool below runs entirely in your browser. Nothing you type or upload is sent to a…
阅读更多 →Free Writing Tools Tools — 6 Online Utilities
Count, compare, format and polish your text. No account, no upload, no watermark. Every tool below runs entirely in your browser. Nothing you type or…
阅读更多 →Image optimisation: the 90% rule for page speed
Ask anyone who has profiled a slow page what they found, and images are usually the answer. On a typical content page, images account for 60–70% of total…
阅读更多 →12 free developer tools worth bookmarking
There is no shortage of free developer tools. There is a shortage of free developer tools that are fast, that do not require an account, and that do not…
阅读更多 →Why browser-based tools are faster, safer and free
Every year, millions of people paste API keys, customer records and salary spreadsheets into free online utilities. The tool works, the result is right,…
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