THE COMPLETE TOOLBOX

Find the right tool,
faster.

Search by task, format or workflow. Filter local and batch-capable tools before you open a workspace.

◉ Local-first105 working toolsNo account
105 tools match
64
DeveloperPopular

Base64 Encoder / Decoder

Encode text to Base64 or decode it back.

Local
Tt
TextPopular

Case Converter

Convert text to upper, lower, title, camel or snake case.

Local
#
DeveloperPopular

Hash Generator

Create SHA-1, SHA-256, SHA-384 or SHA-512 digests.

Local
ImagePopular

Image Compressor

Reduce image size with adjustable quality.

Local with limits
ImagePopular

Image Resizer

Resize images to exact pixel dimensions.

Local with limits
{ }
DeveloperPopular

JSON Formatter

Format, validate and inspect JSON data.

Local
$
CalculatorsPopular

Loan Calculator

Estimate monthly loan payments and total interest.

Local
PDFProfessional workspacePopular

Merge PDF

Combine multiple PDF files into one document.

Local + downloaded codeBatch
%
CalculatorsPopular

Percentage Calculator

Calculate a percentage of any value.

Local
PromptPopular

Prompt Structure Template

Arrange a rough request into a reviewable template without running an AI model.

Local
.*
DeveloperPopular

Regex Tester

Test JavaScript regular expressions against text.

Local with limits
CalculatorsPopular

Scientific Calculator

Evaluate arithmetic expressions with functions and constants.

Local
PDFProfessional workspacePopular

Split PDF

Extract selected pages into a new PDF.

Local + downloaded code
DeveloperPopular

UUID Generator

Generate cryptographically random UUID v4 values.

Local
Aa
TextPopular

Word Counter

Count words, characters, sentences and reading time.

Local
🔒
Developer

AES Text Encryption

Encrypt and decrypt text with AES-GCM and a passphrase.

Local with limits
Calculators

Age Calculator

Calculate exact age from a date of birth.

Local
🔒
Developer

Basic Auth Generator

Create an HTTP Basic Authorization header.

Local
ImageProfessional workspace

Batch Image Compressor

Compress a validated image queue locally and download results as a ZIP.

Local + downloaded codeBatch
ImageProfessional workspace

Batch Image Converter

Convert multiple JPEG, PNG or WebP files locally and download a ZIP.

Local + downloaded codeBatch
B
Developer

Bcrypt Hash & Compare

Create bcrypt password hashes and verify values locally.

Local with limits
+
Calculators

BMI Calculator

Calculate body mass index from metric measurements.

Local
rwx
Developer

Chmod Calculator

Convert Unix permissions between symbolic and octal forms.

Local
Developer

Color Converter

Convert HEX colors to RGB and HSL.

Local
Image

Color Picker

Pick a color and copy HEX, RGB or HSL values.

Local with limits
%
CalculatorsProfessional workspace

Compound Interest Calculator

Estimate compound growth with periodic contributions and annual detail.

Local
Developer

Cron Expression Explainer

Translate a cron expression into readable schedule text.

Local
DeveloperProfessional workspace

CSV ↔ JSON Converter

Convert standards-compliant CSV and JSON object arrays with a local table preview.

Local + downloaded code
$
DeveloperProfessional workspace

cURL Request Builder

Generate shell-safe cURL and fetch snippets without sending the request.

Local
01
Calculators

Data Size Converter

Convert bytes, KB, MB, GB and TB.

Local
CalculatorsProfessional workspace

Date Difference Calculator

Calculate calendar years, months, days and total days between two dates.

Local
PDFProfessional workspace

Delete PDF Pages

Remove selected pages and export a new PDF locally.

Local + downloaded code
Developer

Device Information

View browser-visible screen, locale and platform details.

Local
ImageProfessional workspace

Favicon & App Icon Generator

Create common PNG favicon and app icon sizes from one image.

Local + downloaded code
@
Text

Gmail Address Normalizer

Approximate Gmail casing, dot and plus-tag normalization rules for comparison.

Local
H
Developer

HMAC Generator

Sign text with HMAC using a local secret key.

Local
&;
Developer

HTML Entity Encoder

Encode reserved HTML characters or decode entities.

Local
200
Developer

HTTP Status Codes

Find the meaning of common HTTP response codes.

Local
IB
Developer

IBAN Validator

Validate an IBAN and inspect its country and checksum.

Local
Image

Image Converter

Convert images to PNG, JPEG or WebP.

Local with limits
Image

Image Cropper

Crop an image to a custom rectangle.

Local with limits
i
ImageProfessional workspace

Image Metadata & EXIF Inspector

Inspect reliable file, image and available EXIF metadata locally.

Local + downloaded code
Image

Image Rotator

Rotate or flip an image before downloading.

Local + downloaded code
PDFProfessional workspace

Images to PDF

Combine validated JPEG and PNG images into one local PDF.

Local + downloaded codeBatch
IP
Developer

IPv4 Address Converter

Convert IPv4 addresses between dotted, integer, hex and binary forms.

Local
±
Developer

JSON Diff

Compare two JSON values after normalizing their structure.

Local
{·}
Developer

JSON Minifier

Remove unnecessary whitespace from valid JSON.

Local
DeveloperProfessional workspace

JSON Schema Validator

Validate JSON data against a local JSON Schema Draft 2020-12 document.

Local + downloaded code
T
Developer

JSON to TOML

Convert JSON objects to TOML configuration.

Local
<>
Developer

JSON to XML

Convert JSON values to XML markup.

Local
Y
Developer

JSON to YAML

Convert JSON data to readable YAML.

Local
JWT
DeveloperProfessional workspace

JWT Inspector

Decode JWT headers, claims and timestamps locally without claiming signature verification.

Local with limits
Calculators

Length Converter

Convert metric and imperial length units.

Local
Text

List Converter

Convert line-separated values into CSV, JSON or quoted lists.

Local
AI
Prompt

llms.txt Builder

Create a concise llms.txt file for your website.

Local
Text

Lorem Ipsum Generator

Generate useful placeholder paragraphs.

Local
:
Developer

MAC Address Generator

Generate locally administered unicast MAC addresses.

Local
M
Text

Markdown Preview

Convert Markdown to safe, previewable HTML.

Local with limits
<m>
Developer

Meta Tag Generator

Build essential SEO and social metadata for a web page.

Local
M
Developer

MIME Type Lookup

Look up common MIME types by filename extension.

Local
$
CalculatorsProfessional workspace

Mortgage & Amortization Calculator

Calculate fixed-rate payments, totals and a monthly amortization schedule.

Local
0x
Calculators

Number Base Converter

Convert integers between binary, octal, decimal and hexadecimal.

Local
a9z
Text

Numeronym Generator

Shorten long words such as internationalization to i18n.

Local
Developer

Password Strength Checker

Estimate password strength and identify common weaknesses.

Local with limits
i
PDFProfessional workspace

PDF Inspector

Inspect page count, page sizes, orientation and readable PDF details.

Local + downloaded code
PDFProfessional workspace

PDF to PNG or JPG

Render PDF pages as PNG or JPG files with individual or ZIP download.

Local + downloaded code
Developer

Phone Number Parser

Validate and inspect an international phone number.

Local
Developer

QR Code Generator

Create a downloadable QR code from text or a URL.

Local
#
Developer

Random Port Generator

Generate a random high port number without claiming that it is available.

Local
PDFProfessional workspace

Reduce PDF File Size

Rasterize PDF pages at a chosen quality to make a smaller image-based PDF when possible.

Local + downloaded code
ImageProfessional workspace

Remove Image Metadata

Re-encode JPEG, PNG or WebP images to remove embedded metadata.

Local + downloaded code
PDFProfessional workspace

Reorder PDF Pages

Arrange PDF pages with accessible move controls and export a new file.

Local + downloaded code
X
Calculators

Roman Numeral Converter

Convert decimal numbers and Roman numerals.

Local
PDFProfessional workspace

Rotate PDF

Rotate every page by 90, 180 or 270 degrees.

Local + downloaded code
K
Developer

RSA Key Pair Generator

Generate an exportable RSA public and private key pair.

Local with limits
Developer

Safe Link Decoder

Extract the original URL from Outlook Safe Links.

Local
Developer

Secure Token Generator

Generate random tokens with configurable length.

Local
a-z
Developer

Slug Generator

Turn a title into a clean URL-friendly slug.

Local
ImageProfessional workspace

Social Image Resize

Resize, fit or crop an image to explicit social image dimensions.

Local with limits
SQL
Developer

SQL Formatter

Format SQL queries for easier reading and review.

Local
Prompt

Structured Brief Builder

Convert a rough idea into a reusable project brief.

Local
IP
Developer

Subnet / CIDR Calculator

Calculate IPv4 network, broadcast, mask and usable host ranges.

Local
</>
ImageProfessional workspace

SVG Inspector & Optimizer

Inspect and safely optimize SVG markup without executing scripts or external resources.

Local + downloaded code
Image

SVG Placeholder

Generate a lightweight SVG placeholder image.

Local with limits
°
Calculators

Temperature Converter

Convert Celsius, Fahrenheit and Kelvin.

Local
TextProfessional workspace

Text Cleaner

Trim, normalize, deduplicate and optionally sort text lines in one workspace.

Local
±
Text

Text Diff

Compare two blocks of text and highlight changes.

Local
Text

Text Escape / Unescape

Create and reverse escaped text representations without claiming encryption.

Local
01
Text

Text to Binary

Convert UTF-8 text to binary and back.

Local
A
Text

Text to NATO Alphabet

Spell letters using the NATO phonetic alphabet.

Local
U+
Text

Text to Unicode

Convert text to Unicode code points and back.

Local
Calculators

Time Converter

Convert between seconds, minutes, hours and days.

Local
CalculatorsProfessional workspace

Time Zone Converter

Convert a date and time between IANA time zones with daylight-saving rules.

Local + downloaded code
Developer

Timestamp Converter

Convert Unix timestamps and ISO dates.

Local
J
Developer

TOML to JSON

Convert TOML configuration to formatted JSON.

Local
Developer

ULID Generator

Generate lexicographically sortable unique IDs.

Local
%
Developer

URL Encoder / Decoder

Encode or decode URL components safely.

Local
Developer

URL Parser

Inspect a URL's protocol, host, path, query and hash.

Local
Developer

User Agent Parser

Inspect browser, engine, device and operating system details.

Local
±
PDFProfessional workspace

Visual PDF Compare

Compare rendered pages from two PDFs side by side and with a pixel difference view.

Local + downloaded code
Developer

Wi-Fi QR Code

Create a QR code that joins a Wi-Fi network.

Local
</>
Developer

XML Formatter

Format compact XML with readable indentation.

Local
{ }
Developer

XML to JSON

Convert XML markup to structured JSON.

Local
Y
Developer

YAML Formatter

Validate and normalize YAML documents.

Local
J
Developer

YAML to JSON

Convert YAML documents to formatted JSON.

Local