Luci Studio Luci tools
About
Running locally · nothing uploaded

Sharp little tools that never leave your browser.

A growing kit of 64 utilities for images, PDFs, code and text. Everything runs on your device — your files are never uploaded to a server.

⌘K
100% in your browser Nothing uploaded Free & instant
64 tools across 11 categories
Sponsored A quiet, unobtrusive ad slot — never trackers, never your data.

Image

9 tools

Convert images right in your browser — no upload, nothing stored.

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H→J HEIC to JPG → Convert iPhone HEIC photos to JPG, 100% on your device. P→J PNG to JPG → Turn PNG images into smaller JPG files instantly. W→J WebP to JPG → Convert WebP images to widely-supported JPG. J→P JPG to PNG → Convert JPG photos to lossless PNG. P→W PNG to WebP → Shrink PNG images down to modern WebP. J→W JPG to WebP → Compress JPG photos to smaller WebP files. H→P HEIC to PNG → Convert iPhone HEIC photos to lossless PNG. A→J AVIF to JPG → Convert modern AVIF images to JPG. S→P SVG to PNG → Rasterize SVG vector files to PNG.

Fancy Text

8 tools

Generate copy-paste Unicode text styles for bios and captions.

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𝗔𝗮 Bold Text Generator → Turn plain text into bold Unicode for bios and posts. 𝘈𝘢 Italic Text Generator → Make slanted italic text for captions and titles. A̶a̶ Strikethrough Text Generator → Add a strike through any text in one click. 𝓐𝓪 Cursive Text Generator → Write flowing cursive script text for bios. Ⓐⓐ Bubble Text Generator → Wrap letters in bubbles for cute captions. Ａａ Wide Text Generator → Make wide full-width vaporwave text. 𝙰𝚊 Monospace Text Generator → Fixed-width monospace text for a code look. A̲a̲ Underline Text Generator → Add an underline to any text in one click.

JSON

5 tools

Format, validate and minify JSON privately in your browser.

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{ } JSON Formatter → Pretty-print and validate messy JSON. {-} JSON Minifier → Strip whitespace to the smallest valid JSON. {✓} JSON Validator → Check JSON for syntax errors instantly. J→C JSON to CSV → Convert a JSON array into CSV rows. C→J CSV to JSON → Turn CSV data into a JSON array.

QR Code

6 tools

Generate QR codes for links and WiFi — download PNG or SVG.

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▦ QR Code Generator → Make a QR code from any text or URL. wifi WiFi QR Code → Let guests join your WiFi by scanning. vC vCard QR Code → Share your contact details as a QR code. @ Email QR Code → Make a QR that opens a pre-filled email. url URL QR Code → Turn any link into a scannable QR code. ▦+ QR Code with Logo → Add your logo to the center of a QR.

PDF

5 tools

Merge and build PDFs in your browser — nothing is uploaded.

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⊕ Merge PDF → Combine several PDF files into one. J▤ JPG to PDF → Turn JPG/PNG images into a single PDF. P▤ PNG to PDF → Turn PNG images into a single PDF. ↻ Rotate PDF → Rotate PDF pages by 90, 180 or 270°. ⑂ Split PDF → Split a PDF into one file per page.

Unit Converter

11 tools

Convert length, weight and temperature units right in your browser.

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cm→in CM to Inches → Convert centimetres to inches. in→cm Inches to CM → Convert inches to centimetres. mm→in MM to Inches → Convert millimetres to inches. m→ft Meters to Feet → Convert metres to feet. ft→m Feet to Meters → Convert feet to metres. km→mi KM to Miles → Convert kilometres to miles. mi→km Miles to KM → Convert miles to kilometres. kg→lb KG to Lbs → Convert kilograms to pounds. lb→kg Lbs to KG → Convert pounds to kilograms. °C→F Celsius to Fahrenheit → Convert °C to °F. °F→C Fahrenheit to Celsius → Convert °F to °C.

Hash Generator

4 tools

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes in your browser.

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MD5 MD5 Hash → Generate an MD5 hash from any text. 256 SHA-256 Hash → Generate a SHA-256 hash from text. SHA1 SHA-1 Hash → Generate a SHA-1 hash from text. 512 SHA-512 Hash → Generate a SHA-512 hash from text.

Timestamp

3 tools

Convert between Unix timestamps and human-readable dates.

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TS Unix Timestamp Converter → Convert Unix timestamps to dates and back. E→D Epoch to Date → Convert an epoch to a readable date. D→T Date to Unix Timestamp → Convert a date to a Unix timestamp.

Encode / Decode

6 tools

Base64, URL and HTML entity encoders, plus a JWT decoder.

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64↑ Base64 Encode → Encode text to Base64. 64↓ Base64 Decode → Decode Base64 back to text. %↑ URL Encode → Percent-encode text for URLs. %↓ URL Decode → Decode percent-encoded URLs. &#; HTML Entity Encoder → Encode and decode HTML entities. JWT JWT Decoder → Decode a JWT header and payload.

Color Tools

4 tools

Convert HEX, RGB and HSL colors and check WCAG contrast.

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hex HEX to RGB → Convert HEX colors to RGB. rgb RGB to HEX → Convert RGB colors to HEX. hsl HEX to HSL → Convert HEX colors to HSL. ◐ Contrast Checker → Check WCAG contrast ratios.

Password Tools

3 tools

Generate strong passwords and passphrases, 100% in your browser.

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••• Password Generator → Generate strong random passwords. ••✦ Strong Password Generator → Create long, high-entropy passwords. abc Passphrase Generator → Generate memorable word passphrases.