Formatting and encoding
JSON, Base64, URL, hash, color, and text tools handle common cleanup and conversion tasks.
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Category23 calculators
Tech & Developer Calculators
Fast browser-based tools for dev workflows, design tasks, and technical lookups.
Why use EveryCalc for tech & developer?
This hub is designed to make tech & developer calculators easier to find, compare, and use quickly.
23 calculators in one hub
Browse a focused category view instead of hunting across the whole site for the right tool.
Fast tools with clear starting points
Featured picks, converter hubs, popular searches, and curated fast paths help visitors reach the right calculator faster.
Free access while the library grows
EveryCalc stays open to use while we keep improving updates, broader coverage, and better navigation.
Workflow guide
Use developer tools to remove small blockers fast
The tech hub focuses on quick browser-based utilities for formatting, encoding, parsing, measuring, and checking technical values without installing a separate app.
Suggested workflow
- 1Open the formatter, converter, generator, or lookup tool that matches the immediate task.
- 2Paste only the value needed for the job, especially when handling private code, tokens, or customer data.
- 3Copy the result into your editor or workflow, then validate anything security-sensitive in your own environment.
Design and media utilities
Image, aspect ratio, pixel density, and color tools support quick production checks.
Safe local use
Utilities are built for fast browser use, but secrets and regulated data should still stay out of public web tools.
Editor’s picks
Featured tech & developer calculators
The most-used tools in this category — a fast starting point before you browse the full list below.
Popular
Unicode Character Map & Symbol Finder
Search and copy arrows, currency signs, Greek letters, emoji, box drawing characters, and other popular Unicode symbols.
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Popular
JSON Formatter & Validator
Beautify, minify, and validate JSON instantly. Inspect nested objects with an expandable tree view and useful structure stats.
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Popular
Text Compare Tool
Compare original and changed text side by side, highlight added and removed lines, and see a quick similarity score.
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Popular
Markdown Previewer
Write markdown with a live side-by-side preview, copy the rendered HTML, and check word or character counts as you type.
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Popular
Base64 Encoder & Decoder
Encode text to Base64, decode Base64 back to text, work with URL-safe strings, and inspect data URL prefixes instantly.
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Popular
URL Encoder & Decoder
Encode full URLs or query values, decode percent-encoded text, and inspect protocol, path, query params, and fragments.
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All tech & developer calculators
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