Private by design · runs in your browser

All your online tools, in one place.

Toolisco is a complete browser-based toolkit — image, PDF, developer, text, security, SEO tools, calculators, and converters. Everything runs locally: no uploads, no sign-ups, no servers touching your files.

Explore the tools How it works
Files are processed locally — nothing is sent anywhere.
Instant results using native browser APIs — no API keys, no waiting.
Free to use. No accounts, no tracking of your content, no hidden limits.

Works with everything you ship

· PNG · JPEG · WebP · SVG · GIF · AVIF · BMP · ICO · PDF · UTF-8 Text · URL-safe · Hex
Tool categories

All your online tools, organised

Focused categories cover the everyday work — image, PDF, developer, text, SEO, and security tools, plus calculators and converters — with many more a click away.

Image Tools

Convert images to Base64 or data URIs and embed them inline — no extra HTTP request.

Browse Image Tools

Text Tools

Transform, encode, and reshape text and strings without leaving the browser.

Browse Text Tools

Developer Tools

Grab copy-ready snippets and data URIs in the exact format your stack expects.

Browse Developer Tools

Converters

Switch between Base64, hex, binary, and other encodings in a single click.

Browse Converters

Validators

Catch malformed strings and broken encodings before they ever reach production.

Check & Validate

Analyzers

Inspect size, MIME type, and encoding overhead to understand exactly what you have.

Analyze Data

Image Processing

Resize, crop, compress, and convert images locally — nothing is uploaded.

Edit Images

Bulk & Batch

Queue many files and process them all at once, entirely on your own device.

Batch Process Files

Code Generators

Generate clean HTML, CSS, and framework-ready markup you can paste straight in.

Generate Code

Developer Utilities

Quick developer helpers for sizes, speeds, and back-of-the-envelope estimates.

Open Utilities

Formatters & Validators

Format, minify, and validate JSON, XML, HTML, and CSS to keep files tidy.

Format & Minify

Encoders & Escaping

Encode and decode URLs, Unicode, HTML entities, and Base64 safely.

Encode & Decode

Text Utilities

Count words, clean whitespace, change case, diff, and tidy any block of text.

Clean Up Text

Generators

Spin up passwords, tokens, placeholders, and realistic sample data on demand.

Generate Values

Hashing & Checksums

Produce MD5, SHA, and file checksums to verify integrity with confidence.

Hash & Verify

Security & Tokens

Create strong passwords, UUIDs, JWTs, and secure random values locally.

Browse Security Tools

Web & File Utilities

Parse URLs, headers, and file metadata to debug web data faster.

Inspect Web Data

Color Tools

Pick, convert, and build colours, gradients, and palettes for any UI.

Browse Color Tools

QR & Barcodes

Generate and scan QR codes and barcodes, with instant downloads.

Make QR & Barcodes

PDF Toolkit

Merge, split, reorder, and convert PDF pages right in the browser.

Browse PDF Tools

Social Media Toolkit

Size and create images and assets tuned for every social platform.

Create Social Assets

Passport & ID Photos

Produce compliant passport and ID photos for dozens of countries.

Make ID Photos

Calculators

Run finance, health, math, and unit calculations with verified formulas.

Open Calculators
Built for developers

Tools that respect your workflow

No marketing fluff between you and the output. Paste, drop, or type — then copy clean, correct results in the format your stack expects.

Copy-ready output

Data URIs, raw Base64, CSS background snippets, and HTML — one click each.

URL-safe & standard

Switch between standard and URL-safe alphabets, with or without padding.

Batch friendly

Queue many files and encode them all locally without a round trip.

Native-speed encoding

FileReader and Canvas APIs do the heavy lifting, so even large images encode without lag.

Zero data exposure

Your files never touch a server. There’s nothing to upload and nothing to leak.

Jump to the tools
Why Toolisco?

Professional tools, no friction

One place for the everyday work — convert, generate, calculate, and clean up files and text right in your browser, with nothing to install and nothing to upload.

Everything in one place

Image, PDF, developer, text, SEO, and security tools, plus calculators and converters — all under one roof.

Private by design

Files are processed locally in your browser, so your content never leaves your device.

Fast & free

Instant results with native browser APIs — no accounts, no waiting, no hidden limits.

Browse all categories
Privacy first

Your files never leave this tab

Every conversion happens in your browser using local APIs. There is no upload step, no temporary server storage, and no content logging — by design, not by promise.

0bytes of your files sent to any server
100%processing done on your own device
No loginopen the tool and start working
Use cases

Where Toolisco fits

Prepare images

Resize, convert, and compress images, or embed them inline as data URIs to cut HTTP requests.

Work with PDFs

Merge, split, and compress PDF files right in the browser — no upload required.

Ship code faster

Generate HTML, CSS, React, Vue, and other snippets ready to paste into your project.

Clean up text

Count, format, convert, and transform text and data with a full set of text utilities.

Improve your SEO

Build meta tags, structured data, and other on-page essentials in seconds.

Generate securely

Create passwords, tokens, hashes, and random values locally on your device.

Find your tool
How it works

Three steps, zero uploads

Add your input

Drop a file, pick an option, or paste your text. It’s read directly in the browser.

Process locally

Native browser APIs do the work instantly — nothing is sent over the network.

Copy the result

Grab the output, a ready-to-paste snippet, or download the finished file in one click.

FAQ

Common questions

Yes. The tools are free to use in your browser. There are no accounts, paywalls, or usage caps on the core encoding and decoding features.
No. All encoding and decoding runs locally using browser APIs such as FileReader and Canvas. Your file contents never leave your device.
A data URI embeds a file directly inside a URL using Base64, like data:image/png;base64,…. It lets you place an asset inline in HTML or CSS without a separate request.
Common raster and vector formats including PNG, JPEG, WebP, GIF, SVG, AVIF, BMP, and ICO. Support depends on what your browser can read.
Base64 represents three bytes of binary using four ASCII characters, so encoded output is roughly 33% larger than the source. That’s expected and normal.
Once installed as a PWA, the core interface and previously cached assets are available offline, so you can keep encoding without a connection.
From the blog

Guides & deep dives

Visit the blog
Ready when you are

Find your tool in seconds

No setup, no upload, no account. Open the toolkit and get clean, professional results instantly.

Open the tools Developer hub
Browse tools
Install Toolisco Add it to your device for offline, one-tap access.