Tiny, fast, privacy-first online tools.
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Categories
Color
Convert
CSV Delimiter Converter
Change a CSV’s delimiter (comma, semicolon, tab, pipe) safely. Drag & drop.
CSV → JSON
Convert CSV to JSON in your browser. Header detection, delimiter selection, drag & drop.
Excel → CSV/JSON
Convert XLSX/XLS/CSV/ODS to CSV or JSON in your browser. Multi-sheet, preview, headers, delimiter.
Image Converter (PNG/JPG/WebP)
Convert images between PNG/JPG/WebP. Quality, background, resize.
JPG → PNG
Convert JPG images to PNG locally in your browser.
Number Base Converter
Convert numbers between binary, octal, decimal, and hex. Supports big integers.
Roman Numerals Converter
Convert between integers (1–3999) and Roman numerals. Validates input.
Smart Unit Converter
Type anything like “5'11" to cm”, “2.5 lb → g”, or “25 °C in °F”. Multi-answer, show-the-work, batch, and permalinks.
Epoch / UNIX Timestamp Converter
Convert between UNIX timestamp and human date/time. Timezone aware. Copy with one click.
URL Encoder / Decoder
Percent-encode or decode text and URLs. Choose component vs full URL, handle spaces, and parse query parameters.
Base64 Encoder / Decoder
Encode text/files to Base64 or decode Base64 (incl. data URLs). Wrap at 76 chars, copy, and download decoded bytes.
CSV
CSV Column Selector & Reorder
Choose and reorder columns by index or name (header row). Auto-detect delimiter. Download result.
CSV Deduplicator
Remove duplicate rows or duplicates by a chosen column. Auto-detect delimiter; paste or drop CSV; download cleaned CSV.
Data & Dev
JSON Formatter & Minifier
Validate, pretty-print, minify, sort keys.
JSON Validator
Validate JSON and show precise syntax errors with line/column.
Dev
JWT Decoder
Paste a JWT to decode header & payload (Base64URL). Highlights exp/iat/nbf; no signature verification.
Regex Escape / Unescape
Escape text for use inside JavaScript/PCRE regex or unescape it back. Handy for literals.
Regex Tester
Test JavaScript regular expressions with flags. See matches, groups, indexes, and a highlighted preview. Includes replacement and permalinks.
URL Encoder / Decoder
Percent-encode or decode text. Choose full URL or component, parse/build query strings.
UUID & ULID Generator
Generate v4 UUIDs and ULIDs. Batch generate and copy as list or JSON array.
Fun
Coin & Dice
Flip a coin or roll 1–6 dice. Optional seed for repeatable results; shareable permalink via URL.
Decision Wheel
Spin a wheel to pick a random choice. Share a permalink with the options.
P2P Room Chat
Start a room, share an invite link (code only), and chat in real-time. 100% in-browser via WebRTC.
Random Team Splitter
Paste names and split them into random teams. Choose team size or number of teams. Optional seed for repeatable results.
Image
Color Palette Extractor
Extract top colors from an image (k-means-ish). Copy HEX, download JSON palette.
Image Resizer & Compressor
Resize and re-encode images to PNG/JPEG/WebP. Keep aspect, pick quality, quick preview, and download.
Photo EXIF Remover
Strip metadata (EXIF, GPS) from photos by re-encoding in your browser. Preview and download.
Images
QR Code Generator
Create QR codes with logo, colors, PNG/SVG.
HEX ↔ RGB ↔ HSL Converter
Convert colors between HEX, RGB and HSL. Includes color picker, alpha, live preview, and contrast vs black/white.
Images → PDF
Combine PNG/JPG/WebP into a single PDF. Page size, margins, background.
Merge & Extract PDF
Merge PDFs, reorder, page ranges, extract pages.
PDF → Images (ZIP)
Export each page to PNG/JPG/WebP/AVIF as a ZIP. DPI, ranges, selection.
Split PDF to Pages
Split a PDF into one-PDF-per-page and download as ZIP.
Productivity
Security
Hash Calculator (SHA)
Compute SHA-1, SHA-256, or SHA-512 for text or files in your browser.
Password Generator
Strong passwords with options: length, sets, avoid ambiguous/similar, batch output, entropy meter.
Vault (Threshold Secret Sharing)
Encrypt a secret and split the key into N shares; any K shares can decrypt. AES-GCM + Shamir over GF(256). All in your browser.
Text
Case Converter Pro
Lowercase, UPPERCASE, Title Case, Sentence case, snake/kebab/camel/Pascal. Smart small words handling.
Lorem Ipsum Generator
Generate words, sentences, or paragraphs. Optional HTML <p> wrapping and title case.
Markdown Table from CSV
Paste CSV and get a Markdown table. Choose delimiter and header row.
Markdown ↔ HTML Preview
Type Markdown and see sanitized HTML. Copy the HTML output. Supports headings, lists, links, code, bold/italic.
Slug Generator
Turn titles into clean URL slugs. Remove accents, choose separator, lowercase, max length.
Text Diff (Line-by-line)
Compare two texts and see added/removed/unchanged lines. Simple LCS-based alignment.
Unicode Normalizer
Normalize text (NFC/NFD/NFKC/NFKD), remove diacritics, or ASCII-only. Shows code point counts.