All Tools

117 tools available — all free, no account needed

Showing 73–96 of 117 tools

🌐

HTML Encoder/Decoder

Convert special characters to HTML entities and back, with optional quote, slash and space encoding.

Developer Tools 225 uses
🔗

URL Encoder/Decoder

Percent-encode or decode URLs with a choice of encodeURIComponent or encodeURI and a query parameter breakdown.

Developer Tools 125 uses
🔐

Base64 Encoder/Decoder

Encode or decode Base64 with full Unicode support, URL-safe output and optional padding removal.

Developer Tools 87 uses
📝

Markdown Editor

Write Markdown with a toolbar and live preview, then copy or download the Markdown or the rendered HTML.

Developer Tools 191 uses
🔍

Regex Tester

Test regex patterns live against sample text, with match positions, capture groups, named groups and flag toggles.

Developer Tools 268 uses
🎨

CSS Minifier

Compress CSS by stripping comments and whitespace, with calc() and licence comments protected.

Developer Tools 53 uses
🗄️

SQL Formatter

Format messy SQL into indented, readable clauses, or minify it to a single line without breaking literals.

Developer Tools 422 uses
🔄

Diff Checker

Compare two texts line by line with inline word highlights, unified or split view and adjustable context.

Developer Tools 227 uses
⏱️

Cron Expression Generator

Build or decode five-field cron expressions with per-field modes, ready-made presets and a plain English summary.

Developer Tools 355 uses
🔒

MD5 Hash Generator

Turn any text into its 32-character MD5 hash in the browser, with optional auto-hashing as you type.

Security Tools 494 uses
🔒

SHA256 Hash Generator

Produce the 64 character SHA-256 hexadecimal digest of any text, computed in your browser with the Web Crypto API.

Security Tools 29 uses
🆔

UUID Generator

Generate up to 100 version 4, 1 or 7 UUIDs in lowercase or uppercase and copy them in one click.

Security Tools 406 uses
🛡️

Password Strength Checker

Check a password against six rules and see a live strength rating with targeted suggestions.

Security Tools 179 uses
🗜️

Image Compressor

Compress and resize JPG, PNG, WebP or GIF images in your browser with a quality slider and width presets.

Image Tools 278 uses
🖼️

Image Resizer

Resize images to exact pixel dimensions with aspect-ratio lock, then export as JPEG, WebP or PNG in your browser.

Image Tools 164 uses
🔄

Image Converter

Convert JPG, PNG, WebP, GIF or BMP images to JPEG, PNG or WebP with a quality slider and size comparison.

Image Tools 465 uses
💧

Watermark Tool

Overlay a text or logo watermark on a photo with control over size, opacity, rotation, position and tiling.

Image Tools 355 uses
😂

Meme Generator

Add top and bottom captions to your own image and download the result as a PNG or JPEG.

Image Tools 479 uses
🍅

Pomodoro Timer

A Pomodoro timer with custom session lengths, auto-start options, a chime alert and a daily focus count.

Pomodoro & Focus Timers 412 uses
📚

Study Timer

Plan up to ten study sessions with custom study and break lengths, auto-start, a chime and notifications.

Pomodoro & Focus Timers 132 uses
💳

Expense Tracker

Log spending by category and payment method, watch the monthly total, and export the lot as CSV.

Expense Trackers 193 uses
📊

Budget Planner

List your income, sort spending into needs and wants, add savings goals, and see how your split compares with 50/30/20.

Expense Trackers 443 uses
🃏

Flashcard Creator

Build question and answer flashcards with categories, study with tap-to-flip and shuffle, then export as JSON or CSV.

Education & Learning 23 uses

Quiz Generator

Paste a passage or name a topic and get a scored quiz with an answer key and explanations.

Education & Learning 116 uses

Two ways the questions are produced

The generator takes one of two paths depending on what you give it. When you paste a reasonable amount of source text, roughly sixty characters or more, it works from that passage. The text is split into sentences, factual-looking sentences are selected, and each is reworked into a question of the type you chose: a multiple choice item with a key term removed and alternatives drawn from other terms in the same passage, a true or false statement that either keeps or alters a detail, or a short answer prompt asking for the missing fact. Because the distractors come from your own material, they stay on topic rather than being obviously wrong.

When no source text is provided, questions are taken instead from a built-in bank of curated items covering a set of common subjects, matched as closely as possible to the topic you typed. The interface tells you which of the two paths produced the quiz.

Marking is done in the page. Multiple choice and true or false items are compared against the stored correct option, short answers against the expected answer text, and the total is reported both as a count and as a percentage.

Worked example: five mixed questions from a short passage

Suppose you type Biology as the topic and paste a 120-word passage on photosynthesis, then set the question type to Mixed, difficulty to medium and the count to five. The counter under the text box confirms the word count and notes that questions will be extracted from your text.

The result is a five-item quiz mixing formats. A multiple choice item might ask which pigment absorbs light during photosynthesis, offering four options labelled A to D drawn from terms in your passage. A true or false item might state that photosynthesis releases carbon dioxide, which your passage contradicts. A short answer item might ask where in the cell the process takes place, expecting the word chloroplast.

Answer all five, get four right and the score reads 4 out of 5, which is 80 per cent. Each question shows a tick or a cross, and revealing the answer key displays the correct response along with the explanation for each item.

Switching the type to Multiple Choice only and the count to ten regenerates the quiz in the same format throughout, still drawn from the same passage.

Checking the output before you put it in front of learners

Questions generated from a passage are only as accurate as the passage itself. The tool extracts and rearranges what you gave it; it does not fact-check. Paste clean source material and read the answer key before using a quiz with students. Expect to discard or edit the occasional question, particularly where a sentence contained a pronoun or a reference that no longer makes sense once it has been lifted out of context.

Short answer marking compares your typed response against the expected answer, so a correct idea expressed in different words, or with a typing slip, can be marked wrong. Treat that format as self-study prompting rather than formal assessment, and lean on multiple choice or true or false when you need dependable automatic marking.

A few practical habits help. Give at least three or four sentences of source text, since very short passages leave too little material for varied questions and for plausible distractors. Keep the question count in proportion to the passage: asking for twenty questions from a single paragraph forces repetition. And if you generate without source text, check that the built-in bank actually covers your subject, since a niche topic may return general questions instead.

Frequently Asked Questions

No, but the quiz is much better when you do. With a passage pasted in, questions and their alternative answers are extracted from your own material. Without it, the generator falls back to a built-in bank of curated questions matched to the topic you typed, which may be more general than you need.
Multiple choice, true or false, short answer, or a mix of all three in one quiz. You also choose a difficulty level and the number of questions. Multiple choice items present labelled options, and each question can display an explanation alongside the correct answer when you reveal the key.
Aim for at least three or four sentences. The counter under the box warns when the text is too short and confirms when there is enough for questions to be drawn from it. Longer, well-structured passages give more varied questions and more plausible wrong options in multiple choice items.
For short answer questions the response is compared against the expected answer, so a correct idea phrased differently or containing a typing slip may be counted wrong. Use the answer key to check disputed items, and prefer multiple choice or true or false when reliable automatic marking matters.
No. The quiz is generated in your browser, so the text you paste and the answers you type stay on your device. That also means a quiz is not saved anywhere automatically, so copy it out as text if you want to keep it or hand it to someone else.