Alvento Toolbox

Twenty-nine tools.
Zero servers.

Every tool runs entirely in your browser. No uploads, no signups, no tracking. Just utilities that respect your privacy — and your time.

29 Free Tools
0 Uploads
"Finally a toolbox that
doesn't phone home."
Popular right now
QR

QR Generator

Customizable QR codes. SVG export.

↗
Image

Image Compressor

Shrink images by 80%. No upload.

↗
OCR

Image OCR

Extract text from images. Client-side.

↗
Image

Image Resizer

Resize to exact pixels. Social presets.

↗
Image

WebP Converter

Convert to WebP. 60–80% smaller.

↗
Color

Color Palette

Extract palette from any image.

↗
Capture

Screenshot to PDF

Capture webpages as PDF. No extension.

↗
PDF

PDF to Markdown

Cut your LLM token bill by 30x.

↗
Data

JSON ↔ CSV

Two-way conversion. Nested flattening.

↗
Data

CSV to JSON/XML/SQL

Multi-format output from CSV.

↗
JSON

JSON Formatter

Format, validate, beautify JSON.

↗
Diff

Diff Checker

Compare two texts. Line by line.

↗
Text

Word Counter

Platform limits. Reading time. Density.

↗
Text

Case Converter

9 case styles. camelCase, snake_case.

↗
Text

Lorem Ipsum

Placeholder text. Paragraphs or words.

↗
Convert

HTML to Markdown

Convert HTML to clean Markdown.

↗
Convert

Markdown to HTML

Live preview. GFM support.

↗
SOP

SOP to Checklist

Turn any process into action.

↗
Encode

Base64 Encoder

Encode/decode Base64. Image to data URI.

↗
Encode

URL Encoder

Encode/decode URLs. Query strings.

↗
Regex

Regex Tester

Live regex matching. Capture groups.

↗
Gen

UUID Generator

UUID v4, NanoID, ULID. Bulk gen.

↗
Security

Hash Generator

SHA-256, SHA-512. Web Crypto API.

↗
Security

Password Generator

crypto.getRandomValues(). Strength meter.

↗
Security

JWT Decoder

Decode JWTs. Check expiry offline.

↗
SQL

SQL Formatter

UPPERCASE keywords. Proper indent.

↗
CSS

CSS Box Shadow

Design shadows visually. Copy CSS.

↗
CSS

CSS Gradient

Linear & radial. Visual editor.

↗
SEO

Meta Tags

SEO meta tags. OG + Twitter Cards.

↗