Delim Converter

Convert lists between comma, pipe, tab, and custom delimiters with advanced options.

Input 0 items

Output 0 items

⚙️ Settings

Tidy Up Remove newlines

Attack clones Remove duplicates

Explode

Quotes

None Double " " Single ' '

Delimiter

Tags

Interval newline every X

Interval Wrap

Wrap Whole Output Adds to the very start/end of the result — handy for ('a','b') or [a, b]

✓ Copied!

Case Converter

Switch between UPPER, lower, Title Case, and Sentence case.

Input

Output

Duplicate Line Remover

Remove duplicate lines, optionally sort alphabetically or by length.

Input

Output

Number Extractor

Extract all integers, decimals, and percentages from text.

Input

Output

Character Counter

Count characters, words, and lines with detailed stats.

Input

Stats

Text Reverser

Reverse strings, words, or the order of lines.

Input

Output

Find & Replace

Bulk replace multiple strings at once — add as many find/replace conditions as you need.

Input

Output

Find & Replace Conditions

Prefix / Suffix Stamper

Add custom prefix and suffix to every line.

Input

Output

Whitespace Trimmer

Strip, collapse, or remove all whitespace. "Clean All" does both trim and collapse in one click.

Input

Output

Column Extractor

Extract specific columns from CSV/TSV data.

Input (CSV/TSV)

Output

Split by Chunk

Split a long string into fixed-width chunks.

Input

Output

Alphabetical Sorter

Sort lines A→Z, Z→A, or by line length.

Input

Output

Escape / Unescape

Escape to HTML entities or JSON strings, or unescape back.

Input

Output

Line Number Stamper

Add incremental line numbers (001, 002, 003...) to each row.

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Output

SQL Value Generator

Wrap each line in quotes and join → ('a','b','c')

Input

Output

Date Range Generator

Generate a list of dates between two dates with custom intervals.

Start Date

End Date

Interval

Format

Output

Epoch Converter

Convert Unix timestamps to human-readable dates and vice versa.

Unix Timestamp

Human Date

Result

SQL Formatter

Beautify or minify SQL queries with proper indentation.

Input SQL

Output

CASE Statement Builder

Build SQL CASE WHEN statements one condition at a time — no special syntax to remember.

Column / Expression

Conditions

Else (default value)

Generated SQL

Query Sanitizer

Strip comments, SET statements, and trailing semicolons from SQL.

Input SQL

Output

📌 Sticky Notes

Organize your thoughts, tasks, and ideas with drag-and-drop sticky notes.

📌

Click "+ Add Note" to create your first sticky note.

Text Comparator

Compare two texts and see the differences highlighted.

Text A

Text B

Ignore case Ignore whitespace

Differences

Click "Compare" to see differences highlighted.

Ready to compare

Text Statistics

Get detailed statistics about your text: words, characters, paragraphs, sentences, and more.

Input Text

📝 Words

🔤 Characters

📏 Characters (no spaces)

📄 Sentences

📑 Paragraphs

📃 Lines

📊 Avg word length

📊 Avg sentence length

Detailed Results

SQL Query Templates

Ready-to-use boilerplate for common query patterns — CTEs, joins, date rollups, window functions, and stored procedures. Click Copy and adapt the table/column names.

CTE

Basic CTE (Common Table Expression)

Break a query into a readable, reusable named block.

WITH recent_orders AS (
    SELECT
        customer_id,
        order_id,
        order_date,
        total_amount
    FROM orders
    WHERE order_date >= DATEADD(day, -30, GETDATE())
)
SELECT
    customer_id,
    COUNT(order_id)   AS order_count,
    SUM(total_amount) AS total_spent
FROM recent_orders
GROUP BY customer_id
ORDER BY total_spent DESC;

Recursive CTE (hierarchy / org chart)

Walk a parent-child tree, e.g. an employee/manager hierarchy.

WITH RECURSIVE employee_hierarchy AS (
    -- Anchor: top-level rows (no manager)
    SELECT
        employee_id,
        manager_id,
        employee_name,
        1 AS level
    FROM employees
    WHERE manager_id IS NULL

    UNION ALL

    -- Recursive: join children to their parent's result
    SELECT
        e.employee_id,
        e.manager_id,
        e.employee_name,
        eh.level + 1
    FROM employees e
    INNER JOIN employee_hierarchy eh
        ON e.manager_id = eh.employee_id
)
SELECT *
FROM employee_hierarchy
ORDER BY level, employee_name;
-- Note: SQL Server / Oracle: drop the RECURSIVE keyword (just WITH employee_hierarchy AS (...))

Joins

INNER / LEFT JOIN across multiple tables

Combine orders with customers and line items in one query.

SELECT
    o.order_id,
    c.customer_name,
    o.order_date,
    p.product_name,
    oi.quantity
FROM orders o
INNER JOIN customers c
    ON o.customer_id = c.customer_id
LEFT JOIN order_items oi
    ON o.order_id = oi.order_id
LEFT JOIN products p
    ON oi.product_id = p.product_id
WHERE o.order_date >= '2026-01-01'
ORDER BY o.order_date DESC;

GROUP BY / Dates

Monthly rollup with GROUP BY on a date

Aggregate a date column by month (swap the truncation line for your engine).

SELECT
    DATE_TRUNC('month', order_date) AS order_month,     -- PostgreSQL
    -- FORMAT(order_date, 'yyyy-MM')  AS order_month,    -- SQL Server
    -- DATE_FORMAT(order_date, '%Y-%m') AS order_month,  -- MySQL
    COUNT(*)          AS order_count,
    SUM(total_amount) AS revenue
FROM orders
GROUP BY DATE_TRUNC('month', order_date)
ORDER BY order_month;

Window Functions

ROW_NUMBER + running total

Rank each customer's orders and compute a running total.

SELECT
    customer_id,
    order_id,
    order_date,
    total_amount,
    ROW_NUMBER() OVER (
        PARTITION BY customer_id
        ORDER BY order_date DESC
    ) AS order_rank,
    SUM(total_amount) OVER (
        PARTITION BY customer_id
        ORDER BY order_date
        ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
    ) AS running_total
FROM orders;

Stored Procedures

Parameterized stored procedure

A basic proc with optional date-range filters (T-SQL syntax).

CREATE PROCEDURE GetCustomerOrders
    @CustomerId INT,
    @StartDate  DATE = NULL,
    @EndDate    DATE = NULL
AS
BEGIN
    SET NOCOUNT ON;

    SELECT
        order_id,
        order_date,
        total_amount
    FROM orders
    WHERE customer_id = @CustomerId
        AND (@StartDate IS NULL OR order_date >= @StartDate)
        AND (@EndDate   IS NULL OR order_date <= @EndDate)
    ORDER BY order_date DESC;
END;
-- Call it: EXEC GetCustomerOrders @CustomerId = 101, @StartDate = '2026-01-01';

Upsert / Merge

MERGE (upsert) from a staging table

Insert new rows and update matching ones in a single statement.

MERGE INTO customers AS target
USING staging_customers AS source
    ON target.customer_id = source.customer_id
WHEN MATCHED THEN
    UPDATE SET
        target.customer_name = source.customer_name,
        target.email         = source.email,
        target.updated_at    = GETDATE()
WHEN NOT MATCHED THEN
    INSERT (customer_id, customer_name, email, created_at)
    VALUES (source.customer_id, source.customer_name, source.email, GETDATE());

🎨 Color Picker & Converter

Pick a color (or type a value) and get HEX, RGB, HSL, HSV, and CMYK instantly — copy any format with one click.

HEX

#FACC15

RGB

rgb(250, 204, 21)

RGB Percent

rgb(98%, 80%, 8%)

HSL

hsl(46, 96%, 53%)

HSV / HSB

hsv(46, 92%, 98%)

CMYK

cmyk(0%, 18%, 92%, 2%)

CSV ⇄ JSON Converter

Paste CSV or JSON and convert between them. Handles quoted fields, embedded commas, and nested-safe escaping.

Input

Output

SQL Query Explainer

Paste a SQL query and get a plain-English, structured breakdown of what it does. Pattern-based — works fully offline, no AI involved.

SQL Query

Plain-English Breakdown

Unit Converter

Convert data sizes and time durations. Pick a category, enter a value, and see it converted to every other unit.

Pomodoro Timer — Free Online Focus Timer

The Pomodoro Timer is a classic work/break focus timer with customizable durations, cycle tracking, and an audio alert when time's up. It's built for anyone who wants a simple online pomodoro timer to structure focused work sessions without installing an app. Set your focus and break lengths, hit start, and the timer automatically alternates between work and rest.

⚡ Key Takeaways

Classic work/break structure with fully customizable focus and break durations.
Automatically alternates phases and plays an audio alert when time's up.
Tracks completed focus cycles for the current session.
Resets if the tab is closed or refreshed — it doesn't save session history.

What, Who, When & Why

What it's for	A work/break focus timer based on the Pomodoro Technique, with customizable durations and cycle tracking.
Who it's for	Anyone who wants structured focus sessions for deep work, studying, or combating procrastination.
When to use it	At the start of a task you want to commit to working on for a fixed, manageable period.
Why it's needed	Open-ended work sessions are easy to lose focus during; a visible countdown creates a concrete commitment to stay on task.
Best way to use it	Pick one specific task before starting each session rather than a vague goal, so you have a clear stopping point.

How to Use the Pomodoro Timer

Set your Focus duration and Break duration in minutes (defaults to 25 and 5, the traditional Pomodoro lengths).
Click Start to begin the countdown.
Use Pause to temporarily stop the timer, or Reset to start over.
When the timer reaches zero, an audio alert plays and it automatically switches between Focus and Break phases.
Completed focus cycles are tracked and displayed as you work.

What Is the Pomodoro Technique?

The Pomodoro Technique is a time-management method that breaks work into focused intervals (traditionally 25 minutes) separated by short breaks (traditionally 5 minutes), with a longer break typically taken after every four cycles. The structure is designed to maintain concentration while preventing burnout, using the timer itself as a forcing function to stay on task rather than relying purely on willpower.

Example

A typical session: set Focus to 25 minutes and Break to 5, then click Start. After 25 minutes, an audio alert plays and the phase automatically switches to "Break Time." After the 5-minute break ends, it switches back to Focus and the cycle counter increases by one — giving you a running total of completed focus sessions without needing to track them manually.

Key Features

Customizable focus and break durations, not locked to the traditional 25/5 split.
Automatic switching between Focus and Break phases.
Audio alert when a phase ends, so you don't need to watch the clock.
Cycle counter tracking how many focus sessions you've completed.
Start, Pause, and Reset controls for full manual control.

Practical Use Cases

Deep work sessions: structure focused blocks of time for writing, coding, or studying.
Combating procrastination: use a visible countdown to commit to starting a task for a fixed, manageable period.
Study sessions: break studying into focused intervals with built-in breaks to maintain concentration.
Team or personal productivity tracking: use the cycle counter to gauge how many focused sessions you complete in a day.
Task batching: pair each Pomodoro cycle with a single specific task to avoid multitasking during the focus period.

Tips for Best Results

Pick one specific task before starting each focus session rather than a vague goal, so you have a clear stopping point.
If 25 minutes feels too short or too long for your work style, adjust the duration — the technique's core value is the structured alternation, not the exact numbers.
Use the cycle counter at the end of the day to reflect on how many focused sessions you actually completed versus planned.

Related Terminology

Each work interval in the Pomodoro Technique is traditionally called a "pomodoro" (Italian for tomato, named after the tomato-shaped kitchen timer originally used by the technique's creator). A full cycle typically consists of one focus session followed by one break, with longer breaks recommended after several consecutive cycles to avoid fatigue.

Important Considerations

The timer runs within this browser tab — closing the tab, refreshing the page, or navigating away will reset the timer, since no session state is preserved across a page reload. This tool tracks cycles for the current session only and doesn't retain historical data across days or browser sessions.

Related Tools

Pair your focus sessions with Sticky Notes to track what you're working on during each cycle. For tracking longer-term deadlines alongside your daily focus sessions, use Time Till.

Frequently Asked Questions

Can I change the default 25-minute focus time?

Yes, both the focus and break durations are fully customizable — set them to whatever lengths work best for you.

Does the timer keep running if I close the tab?

No, the timer runs within the browser tab and resets if you close it, refresh the page, or navigate away.

How does it track completed cycles?

Each time a full focus session completes, the cycle counter increases by one, giving you a running total of completed focus sessions during your use of the timer.

Does it save my cycle history across different days?

No, the cycle counter tracks your current session only and resets if you close or refresh the page — it doesn't retain historical data across visits.

QR Code Generator

Turn any text or URL into a scannable QR code — generated 100% in your browser, nothing sent anywhere.

Type something to generate a QR code.

🧩 Flow Planner

Sketch out flows and diagrams with shapes and connectors. Double-click a shape to rename it, drag to move, and export the whole board as a PNG.

🗄️ ER Diagram Designer

Sketch database schemas visually — add tables, define columns with types and keys, and draw relationships between them. Export the finished diagram as a PNG.

Free • Browser-Based • No Sign-Up

Tools for analysts, developers & QA engineers

33 free, browser-based utilities — text and list tools, SQL helpers, converters, and small productivity apps. Everything runs locally; nothing you type or paste is ever uploaded.

📊

For Analysts

Clean lists, build SQL fragments, and reshape data without opening a spreadsheet.

💻

For Developers

Format SQL, convert data formats, and handle everyday text and encoding tasks.

🧪

For QA Engineers

Generate test data, compare text output, and sanitize queries before sharing them.

⚙️ Settings

Archived Notes

Pomodoro Timer — Free Online Focus Timer

⚡ Key Takeaways

What, Who, When & Why

How to Use the Pomodoro Timer

What Is the Pomodoro Technique?

Example

Key Features

Practical Use Cases

Tips for Best Results

Related Terminology

Important Considerations

Related Tools

Frequently Asked Questions

Can I change the default 25-minute focus time?

Does the timer keep running if I close the tab?

How does it track completed cycles?

Does it save my cycle history across different days?

Tools for analysts, developers & QA engineers

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