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Developer / code evidence desk
Developer / tools
Format, encode, verify, and inspect development data without setup.
Developer
20 essential tools. Format, encode, verify, and inspect the artifacts that keep development moving.
Showing 20 of 20 tools
URL Slug Generator
Turn titles and labels into clean, copy-ready URL slugs locally.
React Native Shadow Generator
Tune React Native shadows for iOS and Android and copy the styles.
Base64 Encoder/Decoder
Encode Unicode text or decode Base64 locally, including URL-safe values.
HTML Encoder/Decoder
Encode reserved HTML characters or decode entities in a local workspace.
URL Encoder/Decoder
Encode URL components or safely decode percent-escaped values locally.
HTML Minifier
Minify HTML locally and see exactly how many bytes you saved.
CSS Minifier
Minify CSS locally and compare sizes before you copy.
JavaScript Minifier
Minify JavaScript with Terser, entirely in your browser.
HTML Formatter
Re-indent messy HTML into clean, consistent markup.
CSS Formatter
Re-indent CSS into readable, consistent rules.
JavaScript Formatter
Format JavaScript with a real parser, no upload involved.
MD5 Hash & Verify
Hash text or files with MD5 and verify against a known digest.
SHA-1 Hash & Verify
Hash text or files with SHA-1 and verify against a known digest.
SHA-224 Hash & Verify
Hash text or files with SHA-224 and verify against a known digest.
SHA-256 Hash & Verify
Hash text or files with SHA-256 and verify against a known digest.
SHA-384 Hash & Verify
Hash text or files with SHA-384 and verify against a known digest.
SHA-512 Hash & Verify
Hash text or files with SHA-512 and verify against a known digest.
JWT Encoder/Decoder
Decode and verify JWTs across HS, RS, and ES algorithms locally.
JSON Tree Viewer
Explore deeply nested JSON as a readable, collapsible structure.
Developer workflows / transform data without hiding the steps.
Format, encode, verify, and inspect.
Prepare the source
Format or minify code with an explicit before-and-after result.
Open a matching toolMove between representations
Encode, decode, hash, and compare values inside a focused workspace.
Open a matching toolVerify the artifact
Inspect structure and integrity before the result enters another system.
Open a matching toolBuilt for focused work / useful output without a setup step.
Browser-first by design.
Browser-first
Open the task. No utility package or account required.
Visible processing
See input, result, state, and execution label at every step.
Export-ready
Copy or download the useful result without cleanup.
Related categories
Continue the workflow with another focused collection.
Technical operating notes
Treat generated output as evidence, not magic.
Keep a known-good input
Retain the original source so formatting and conversion remain reversible.
Confirm the mode
Check whether the operation formats, encodes, hashes, or verifies.
Test the result
Validate output in its destination before relying on it in production.
Questions before you begin?
Which Developer tools run locally?
Every card carries an execution label. Local tools keep active input in the browser; cloud and hybrid tools explain external processing before it begins.
Will a Developer transformation change my source?
Toolars works on a separate browser copy. Your original file or text stays unchanged unless you intentionally download and replace it.
Can I save a tool?
Yes. Guest favorites stay in this browser. An account can sync favorites after authentication is configured.
How do I report an incorrect result?
Each tool page includes a report surface. Submitted feedback contains only the message and page context you choose to send.
Missing a Developer utility?
Tell us the input, the transformation, and the result you expect.