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130 useful English tools

Hand Written

Turn text and uploaded tasks into natural handwriting on paper, with your own handwritten letters and PDF or image downloads

Document

Pearto Reader

Read imported articles and documents in a comfortable private workspace

Text

Photo Collage Maker

Choose 1–25 photo slots; Browse 505 count-filtered visual templates with grids and shaped masks

Image

Background Remover

Remove image backgrounds with one click; Prepare profile and product images

Image

Teleprompter

Full-window script editor and reading guide; Play, pause, and reset automatic scrolling

Text

Online Whiteboard

Full-window drawing with multiple pages, lasso movement, image import, and PNG export

Image

Loan Calculator

Loan principal, term in years, and annual interest rate inputs; Equal principal-and-interest repayment

Query

Multi-channel Timer

Add and remove named countdown channels; Edit each channel’s minutes and seconds

Others

Flip a Coin

Simulate a coin toss; Heads or tails result

Others

Image Upscaler

Upscale images with AI; Choose enlargement from 1× to 4×

Image

Online Metronome

Set tempo with a slider or numeric input, from 40 to 220 BPM; Select time signatures such as 2/4, 3/4, and 4/4

Music

Guitar Tuner

Tune to standard EADGBE guitar tuning; Select an individual string

Music

AI Humanizer

Edit English drafts, review grammar, compare supplied sources and understand writing patterns in one private workspace.

Text

AI Copywriting

Rewrite text in natural English; Create copy with a locally hosted model

Text

JavaScript Tool

Beautify and format JavaScript; Remove comments and unnecessary whitespace

Development

CSS Tool

Beautify and format CSS; Purify into one line and remove comments

Development

Reasoning & Wellbeing

Scored reasoning practice and four wellbeing questionnaires with local scoring.

Academic

Python Tool

Decompile PYC files; Beautify and format Python code

Development

Claim & Word Checker

Review English wording against an editable list of claims and restricted terms

Text

PDF Merger

Combine multiple PDF files into one

Document

PDF Editor

Edit PDFs in a full-window workspace with text, signatures, images, annotations, links, forms and page controls.

Document

Audio Editor

Import audio files or paste them from the clipboard; Visually set the clip start and end points

Audio

Subtitle Stitcher

Combine subtitle screenshots into one stitched image; Import screenshots by clipboard paste or file selection

Image

Graph Paper Generator

Generate printable graph paper; Choose triangle, square, hexagonal, or dot grids

Design

Date Calculator

Difference between two calendar dates; Add or subtract days, weeks, or months from a date

Query

Watermark Adder

Add watermarks to images; Support PNG, JPG, and GIF images

Image

PHP Tool

Beautify and format PHP code; Decrypt PHP code

Development

HTML Tool

Beautify and format HTML; Compress HTML

Development

Regex Test Tool

Test regular expressions, highlight matches and generate code

Development

SQL Tool

Beautify and format SQL; Compress SQL

Development

JSON Tool

Edit JSON with live preview; Format JSON

Development

XML Tool

Format XML; Compress XML

Development

Color Tools

Convert colors between RGB, RGBA, CMYK, HSL, HSV/HSB, CIE-LAB, XYZ, and CIE-LCH; Show hexadecimal and decimal RGB values, ANSI 256 colors, and color names

Design

Markdown Editor

Edit Markdown with a preview pane; Formatting toolbar for bold, italic, links, strikethrough, tables, quotes, images, and code

Text

Mermaid Editor

Edit diagrams using Mermaid syntax; Real-time diagram preview

Text

Font Reference

Preview common interface, reading and programming fonts

Development

Code Highlighter

Apply syntax highlighting to code; Prepare highlighted code for pasting into PowerPoint

Development

Image Compressor

Compress JPEG, PNG, GIF, and SVG images; Upload images by drag and drop or file selection

Image

DNS Lookup

Query A records; Query MX records

Operations

Image Format Converter

Convert images between file formats; Import images by drag and drop or file selection

Image

Fraction Calculator

Simplify a fraction from numerator and denominator; Greatest common divisor of two integers

Academic

YAML Tool

Convert among YAML, JSON, and Properties; Select the source format

Development

ID Photo Cropper

Crop passport and ID photos; Support sizes such as 1 inch and 2 inches

Image

Random String Generator

Generate random strings and passwords; Set minimum and maximum lengths from 0 to 50 characters

Development

Punycode Converter

Convert internationalized domain names to Punycode; Convert Punycode to internationalized domain names

Operations

Paper Size Lookup

A0–A10 dimensions in millimeters; B0–B10 dimensions in millimeters

Query

CIDR Calculator

IPv4 CIDR/subnet details; CIDR-to-address-range reference

Query

Image Slicer

Split images into a nine-cell grid for social media

Image

Shell Script Tool

Beautify and format shell scripts; Compress shell scripts

Development

Size Chart

Clothing size reference; Pants size reference

Query

Word Counter

Count words, characters, Unicode bytes and lines

Text

Magic Bytes

Identify file types using header bytes

Development

Unit Converter

Length and weight conversions; Volume and area conversions

Academic

Name Generator

Generate English baby names with surname, birth time, fixed letters and personalized filters

Query