51 independent tools · updated Oct 2026
Free browser tools for everyday jobs.
Small, focused tools for code, images, money, sport and weather — plus a few games for the in-between. They open instantly in your browser, with no account and nothing to install.
The index — 51 toolsPick a shelf, or just search.
Developer & web tools
Format JSON, check colour contrast, trace .gitignore rules, compare HTTP Vary headers, plan a localhost tunnel and write bug reports someone can reproduce.
13 toolsContrast Lab
An interactive workbench for a more accessible web.
Ignore Trace
See which ignore rule decides a path.
JSON Desk
Make sense of the data in front of you.
Module Path Workbench
Preview a Go module path change, line by line.
Panel Grid
Arrange dashboard panels and export a working CSS grid.
Plan Pilot
Find the coding plan that fits the way you build.
Repro Sheet
Turn a bug into a report someone else can reproduce.
Snapshot Audit
Review the file list before a workspace leaves your machine.
State Paths
Trace reachable states and dead ends in a small flow.
Tail Lens
Compare typical and slow timings from two samples.
Tunnel Desk
Plan a temporary localhost share before opening it.
Vary Bench
Compare the request headers named by an HTTP Vary response.
Wi-Fi Setup Matrix
Turn device onboarding checks into a testable record.
Image, file & text tools
Compress and resize images, check a file’s SHA fingerprint, split a crowded spreadsheet cell into rows, choose “a” or “an” and set a type-led event poster.
07 toolsArticle Hinge
Choose “a” or “an” by the sound that follows.
Cell to Rows
Turn a crowded cell into a clean list.
Dial-up Transfer Time
Find out how long a file would take on a slow connection.
File Seal
Check the fingerprint of a file.
Image Press
Smaller files. All the detail that matters.
Poster Proof
Turn event details into an editable type-first poster.
Review Pattern Desk
Compare product reviews for repeated wording.
Games & playful tools
A lights-out puzzle, a last-stand squad runner, a coin flip for small decisions, a coffee personality match and a spot-the-mistake maths challenge.
05 toolsMoney, home & planning tools
Compare grocery prices per kilogram, split a shared bill, estimate EV charging costs and power-bank runtime, and plan board cuts, mooncake portions and slower trips.
10 toolsAd Ledger
Calculate job ad age and keep a practical shortlist.
Assumption Ledger
Turn a decision into observations, assumptions, and a first check.
Board Cut Plan
Turn a woodworking cut list into a board-by-board layout.
Charge Window
Estimate an EV charging window from the numbers you bring.
Mooncake Table
Plan portions and whole cakes for a Mid-Autumn gathering.
Shelf Math
Compare grocery packs by their price per kilogram, litre, or item.
Slow Atlas
Fewer places. A little more of each.
Sổ Chi Phí Xe Điện
Tính tiền sạc cho một quãng đường và đối chiếu với xe xăng bằng giá bạn nhập.
Sổ Chia Chuyển Khoản
Chia một khoản chi chung và ghi rõ số tiền từng người cần chuyển.
Sổ Giờ Pin
Ước tính pin dự phòng chạy được bao lâu với các thiết bị bạn chọn.
Sport score & timing tools
Build a football group table, test how one result moves the standings, convert US kickoff times to Singapore time, keep a volleyball score and split a 100m run.
06 toolsBảng Điểm Bóng Chuyền
Bấm điểm từng pha, theo dõi từng ván và sửa ngay khi chấm nhầm.
Group Score Table
Build a football group table from the scores you enter.
Jadual Kumpulan Bola
Kira kedudukan kumpulan empat pasukan daripada keputusan perlawanan.
Kickoff SGT
Turn a US kickoff time into its Singapore date and time.
Matchday Margin
Test how one football result changes two teams' table positions.
Pecahan 100m
Lihat masa dan kelajuan bagi setiap bahagian larian 100 meter.
Weather & air quality tools
Keep a dated record of Singapore PSI readings, compare Malaysian API levels, convert collected rainwater into millimetres and prepare for a Vietnamese cold spell.
04 toolsMath, science & sound explorers
Explore modular arithmetic, pitch-class cycles, signed distance fields, lunar phases, FM synthesis and parity bits with direct, visual controls.
06 toolsDistance Field Lab
Combine a circle and box, inspect the contour, and export the plot.
FM Tone Bench
Hear and inspect a frequency-modulated tone.
Modulo Map
See remainders, cycles and multiplication patterns on one modular clock.
Moon Terminator
Draw a lunar phase and rotate its illuminated edge.
Parity Trace
Add a parity bit and test what a receiver can detect.
Tone Cycle Atlas
Trace any semitone step around the twelve pitch classes.
How Early works
Small on purpose. Useful on arrival.
- 01
No account, no sign-up
Open a tool and start. There is nothing to install and nothing to register.
- 02
Works in your browser
Tool inputs are processed on your device. Download or copy a result when you want to keep it.
- 03
Made for a place
5 for Singapore, 5 in Vietnamese, 5 for Malaysia and 36 that work anywhere.