What’s new

• A What’s new page lists every change in one place, and each tool shows its version: the date of its latest change.
• Share asks whether to send the link with your values or just the page, wherever the link holds what you entered.
• The browser now enforces the site’s Content Security Policy, so it blocks any script the site didn’t ship.

First published: maintenance calories as a range, calories for your goal with a week-by-week timeline, macros and protein, with calorie, macro, BMR and protein calculator pages.

First published.

How the percentiles are worked out and the studies behind them now show under the tool, in “How this works”.

How the chart is worked out and the study behind it now show under the tool, in “How this works”.

• Results have share buttons that load nothing from the social networks until you tap one; health, body and private pages have none.
• The AI Tools hub explains the four ways a tool can use AI, from none to your own key, and what each one sends and costs.

First published, on the Fed’s 2025 Survey of Consumer Finances: your income percentile for your age, the median by age since 1989, and two by-age pages.

First published, on the Fed’s 2025 Survey of Consumer Finances: your percentile for your age, the median and mean by age, and three by-age pages.

First published: vows on your own terms, quick logging with undo, pauses, a month grid, totals, pace and a finish date, a printable monthly sheet and a summary to copy.

• First published: inline suggestions with accept, edit and dismiss, a four-part score, tailoring to a job posting, PDF and Word in, Word and Markdown out, and optional AI rewrites.
• An opened PDF or Word file is shown as it looks, with the suggestions marked on its own words and accepted fixes shown as tracked changes; the file itself is never changed.

First published, on the Fed’s 2025 Survey of Consumer Finances: your rank for your age among all families and among savers, 401(k)s on their own, and two by-age pages.

Rebuilt around the table: 8-bit binary, click to copy, one lookup box, control codes explained, extended ASCII in three code pages and a printable chart.

Added the BMI chart page: every adult height from 4 ft 10 in to 6 ft 6 in and 148 to 200 cm, with your point on the chart.

Added 7 gentle yoga poses for evenings and bedtime, such as Legs Up the Wall, and a desk set you can do from a chair.

After a reload, a chip offers to turn the sound back on, and the FAQ now says plainly that a locked phone may hold the chime until you return.

First version: six levels from 3 to 20 minutes, a sleep body scan that fades out, a bells-only timer, two voices, six scenes and offline listening.

Yoga by time of day: morning, afternoon desk, evening and bedtime routines in 2–3 lengths each, slower breath pacing in the evening, easier versions for knees and wrists, and 7 new poses.

Added SVG to PNG (any size, transparent or coloured background, nothing the SVG links to is loaded) and JFIF to JPG (renamed without re-encoding).

First version: what a dollar is worth from 1913 to August 2026, your own inflation rate, whether a raise beat inflation, the current rate, the rate by year and 12 year pages.

A running workout now survives a reload, a chip offers to turn the sound back on, and the FAQ says plainly that a locked phone may hold the beeps.

When AI runs on your own key, each run shows what it cost, and a costly one asks before it is sent.

When AI runs on your own key, each run shows what it cost, and a costly one asks before it is sent.

PMI stops at 78% of the price, as the law requires, and starts blank for your lender’s rate instead of an uncited 0.5%; the result shows total interest, and $1B reads as $1B.

• Added 10, 20, 30, 45 and 90 second timer pages, each with its own uses, a table and cited facts.
• A timer opened from a link no longer resets on reload, a tap brings the sound back after one, and on phones Start is on the first screen.

After a reload, a chip offers to turn the sound back on, and the FAQ now says plainly that a locked phone may hold the chime until you return.

15 more conversion pages (IST to CST, BST to IST, SGT, GST, JST, MST and more); each conversion page shows all 24 hours with working hours shaded, and its best meeting times.

Every tool ends with a quiet Send feedback line. It sends the page name and your message, never what you typed into the tool.

A link to any page now unfurls into a picture of the tool and its example answer.

• Pages for each job: encrypt text, encrypt a file, decrypt, and what age is, each opening the tool on that job.
• First published: text, photos and files, as a block, a file or a link, in the age format.

First published: a private dose log with an injection-site map, a side-effect diary, a printout for your doctor, calendar reminders and the labels’ missed-dose rules.

First published: the chart from 1–10 to 1–20, practice with progress for each person, printable charts and sheets, the 2 to 12 tables and check practice.

• Added 21 pages: what colours go with navy, black, grey, beige, olive, burgundy, brown, white, denim and pink (each table from the engine), and what to wear from 40 to 80 °F and 5 to 25 °C.
• First published.

First published: a daily protein range for weight loss on a GLP-1 from the 2025 joint advisory, split over your meals, with what 100 g of protein looks like in everyday foods.

• Added Wegovy 7.2 mg (STEP UP), the Wegovy pill (OASIS 4) and Foundayo (ATTAIN-1), from their FDA labels.
• The week-by-week line now follows each trial’s published visit averages, so early weeks are no longer overstated; fixed the FAQ on who the trials enrolled.

Browsers that can’t open HEIC say so before any file is chosen, with the quickest ways for the device and a QR code to carry on in Safari on an iPhone.

The monthly payment now includes property tax and homeowners insurance by default, at cited US averages you can change, and any extra payment, with a breakdown underneath.

• From a master password now shows the exact domain used, offers the main site for a subdomain, and names any changed settings; the passwords are unchanged.
• Passphrases have a page of their own, with the word list explained and a table of strength by word count.
• Times to guess use the exact strength, and two billion years is no longer called longer than the age of the universe (13.8 billion).
• Passphrases now use the EFF long word list (7,772 words, 12.9 bits each, up from 1,287 words and 10.3 bits), with 4 to 8 words; the default five words are about 65 bits.
• Passwords from a master password moved out of the ⋯ menu into their own tab. They are byte-for-byte the same as before, and the master password and website are never saved or put in the page address.

Photos are read in a background worker, small size first, so a large photo no longer freezes the page; the previous answer clears as soon as a new image arrives.

The pickers find about a thousand more cities, states and countries (Seattle, Bangalore, Texas), and each conversion page names the next clock change on either side.

Ask understands “5 ft 9 in to cm” and “2 cups of flour in grams” and answers at once, and a decimal comma (“2,5”) reads as 2.5.

The home page is grouped into seven sections, and every category has its own page.

• Tools show how they work: the method, the sources and the worked examples the tests check, with a short change log.
• Embed a tool on your own site, or cite it in APA, MLA, Chicago or BibTeX, from its ⋯ menu.
• The footer counts what the page has sent, and a new page shows how to check our privacy claims yourself.

Chart tools print a full report on A4 or Letter, with a QR code back to your result.

First published, with nine pages: adding, subtracting, multiplying, dividing and simplifying fractions, fraction to decimal and back, mixed numbers and ratios.

First published, with ten calculators: GCF, LCM, factors, prime checker, prime factorization, mean, median and mode, standard deviation, variance, exponents and logarithms.

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First published, with a library of 19 common patterns and their test cases.

• The converter opens on the time now, live, with a Now choice beside the time, and the main converter starts from your own time zone.
• First published, with a world clock, pages for the time in 31 places and 15 common conversions such as PST to IST.

First published: 89 everyday units across ten quantities, with 58 pages for common pairs such as cm to inches and Celsius to Fahrenheit.

First published.

Added a printable report with the weight scale and the categories at your height.

Added a printable report with your size in every system, sister sizes, a fit checklist and every brand.

Added a printable buy-or-lease report with the cost chart and a year-by-year table.

Added a printable report with the growth chart and a year-by-year table.

First version: plain English and the next runs for six schedulers, a builder, conversion between them, and 20 pages for common schedules.

First version: mic, webcam, keyboard, click speed, spacebar and gamepad tests, all on the device.

Added a printable report with the band ladder for each metric and what moves you up a band.

“Print for my doctor” now prints a report with your inputs, the week-by-week chart, milestones, your weigh-ins and the trial sources.

Added a printable report with the A1C and glucose ruler, the conversion table and the working.

First version: JPG, PNG and WebP compression by quality or target size, a before and after view, resize, ZIP download, and Compress JPEG and Compress PNG pages.

• HEIC now opens only where the browser reads it (Safari 17+), with tips elsewhere; the bundled HEIC decoder was removed because HEVC is covered by patents.
• First version: HEIC, WebP, AVIF, PNG, JPG, GIF and BMP to JPG, PNG or WebP, in batches with a ZIP, metadata removed by default, and nine conversion pages.

Added a printable report with the height, weight and BMI-for-age charts and their sources.

• Lessons now open in a split workspace: the guide, tasks, hints and a cheat sheet beside a full terminal, with a Lesson and Terminal switch on phones and an optional dark terminal.
• Leaving a lesson for another page no longer causes an error.

Added a printable report with the cost-by-volume chart, the one- and three-year costs and the self-hosting breakdown.

Added a printable report with the price comparisons and the cost per request.

Added a printable report.

Pictures in your pages now save in Safari private tabs too.

Added a printable report.

Added eight pages for common questions, from percent of a number to percent error and reverse percentages, each with its own method, examples and table.

Added a printable report.

First version: a scanner for camera, photos and screenshots with link checks, and generators for links, text, Wi-Fi and contacts with SVG and PNG downloads.

Added a printable report with the parabola, the worked steps and the properties table.

Added a printable payback report with the year-by-year savings table.

Fonts now load from this site instead of Google Fonts, uploaded photos save in Safari private tabs, and library photos have descriptions for screen readers.

Printing now gives a report with every week of the plan, plus the progression and muscle-balance charts.

Bring your own AI key from OpenRouter, OpenAI, Anthropic or Gemini; it is called straight from your browser and stays on your device.

First published.

First published.

Rebuilt with 18 conversion pages, including text to binary and hex, two’s complement, IEEE 754 floating point, a bitwise calculator and Roman numerals, each with its method and a table.

The insights can be worded by an AI service using your own key; only the facts and your questions are sent, never your readings.

The 10+0 preset is now labelled blitz, as FIDE does.

Added 30 machine and cable exercises (119 in all), research citations on exercise pages, and a more lifelike figure that moves more naturally.

The AI helpers can now use your own OpenAI, Anthropic, Gemini or OpenRouter key, set in Settings.

The AI help can now use your own OpenAI, Anthropic, Gemini or OpenRouter key, set in Settings.

The drawing paper and code box now follow the colour theme you pick.

Gym plans can now use machine and cable exercises such as the leg press and cable rows, and core work rotates through every core exercise your setup allows.

App mode on every tool, remembered across the site, and a Settings page for your saved data, units and analytics.

Ten themes, reading fonts, text size, spacing and reduced motion, on a new Appearance page.

A Privacy Policy, Terms of Use and a contact page.

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Added key facts on how age, leap years and short months are counted.

Added key facts about the most-used codes, such as A = 65 and the 32 gap between upper and lower case.

Added key facts with worked examples of converting between bases.

• Rebuilt: charts over time, by time of day and by meal, GMI for sensor data, imports from Dexcom, LibreView, mySugr, Apple Health and Nightscout, and a report to share with your care team.
• Usage statistics no longer record a reading’s value, range or meal.
• Added key facts with the ADA and time-in-range targets.

Added key facts with the WHO categories; the disclaimer became one quiet line under the result.

• Sizes and units now follow what you choose in Settings → Units.
• Added key facts: how the band and cup are worked out and how sizes convert between systems.

Added key facts with worked examples of the compound interest formula and the Rule of 72.

• Added key facts from the STEP 1 and SURMOUNT-1 trials; the disclaimer became one quiet line under the result.
• Usage statistics no longer record which medication or dose you picked.

Added key facts with the formulas and A1C ranges; the disclaimer became one quiet line under the result.

• The history now keeps your last 200 inputs (up to 100 MB) in this browser, up from 50.
• Rebuilt: errors in plain words with line and column, a one-click fix with a preview, a searchable tree with JSONPath queries, a private local history, and 10–50 MB files.

Added AI helpers that summarise, rewrite, proofread and translate with the browser’s built-in model (desktop Chrome), so your text never leaves the device.

Added AI help that drafts a diagram from your description, explains one or fixes an error, using the browser’s built-in model; Auto colours now match the theme you pick.

Added key facts with worked examples of the payment formula.

Added key facts with a worked example of each formula.

First published: a guided six-measurement method with a figure showing where the tape goes, your size in five systems, sister sizes and brand fit notes.

CSV import asks which unit a file uses when it doesn’t say, and lists the rows it skipped.

Very long terms now get a clear limit of 50 years instead of slowing the page down.

Fixed the cover picker and a paste security flaw; print and HTML export strip scripts from imported files, and a failed save now says so and keeps your text.

If another tab or a synced computer changes the diagram you have open, your unsaved edits are kept and the other version is saved as a copy.

The chart is free to reuse under the CC BY 4.0 licence, with credit and a link.

A program with huge repeats or shapes now stops with a clear message instead of freezing the page.

Back up everything the site saves as one file, restore it in any browser, or sync it through a folder you choose.

Redesigned: every tool opens on a worked example with its answer and a picture, with ⌘K search and custom icons.

First published: log readings and see your average, estimated A1C and time in range, with a printable report and blank log sheet.

• Redesigned: separate day, month and year boxes, a ring showing the way to your next birthday, and coming milestones such as 10,000 days old.
• Fixed day counts that could be one off across daylight-saving changes, and ages for birthdays on the 29th to 31st of a month.

Redesigned with a ruler of your average, peak and cap split across clients; the limit is now sized from your peak plus 20% headroom, and the snippets set both a per-client and a whole-API limit.

Redesigned: a 16-column chart, each character’s byte shown as eight bits, a ranked search by character, code or name, and any text turned into its codes.

Redesigned: the working shown step by step, and the same number in the other common bases under the answer.

Redesigned: URL-safe and line-wrap options, decoded images, PDFs and other files to preview or download, and a view of how 3 bytes become 4 characters.

Redesigned: a weight ruler with your BMI marked, the healthy weight for your height, sliders for both inputs and a shareable result image.

Redesigned: enter the dealer’s lease quote and see the APR it implies, with a chart of when buying pulls ahead; a lease that runs past your comparison is now prorated.

Redesigned: paste a colour in any format, HSV and CMYK added, opacity, a contrast check against white and black text, and colour harmonies.

Redesigned around three questions: grow your savings, reach a goal, or see the cost of waiting, with an option to show results in today’s dollars.

Bands updated to the 2024 DORA report and the overall level is now your lowest band, with a band ladder per metric, what the next band needs and a shareable image.

Grew from 45 to 89 entries with bodyweight, cardio and yoga moves (including Sun Salutation A), a Strength, Cardio and Yoga filter, and stretches on muscle pages.

Redesigned: the scores needed for an A, B, C or a pass at once, a range showing where you can still land with a score you can drag, and the working shown step by step.

Redesigned: a new forecast chart with milestone dots, your goal and your weigh-ins, a milestone track, a dose schedule and a printable page for your doctor.

Redesigned: one ruler that shows A1C and average glucose together, a mode for CGM averages (GMI), IFCC mmol/mol units and a conversion table you can tap.

Redesigned: weighting is now set per course (Honors +0.5, AP/IB +1) instead of adding a point to every grade, and you can add your previous GPA and credits for a cumulative GPA.

Redesigned: a letter-grade scale with your grade marked, a bar showing which assignments your points came from, and points-based grading when you leave the weights blank.

First version: guided follow-along flows with a 3D figure, a breath-paced timer, a chime and spoken pose names.

Redesigned: ratings in words, suggestions from the standard planning-poker deck (1 to 13, then 20, 40, 100), a split-the-story warning above 13, and the estimate copies as a Jira comment.

Format and minify now keep big integers and duplicate keys exactly as written, with a warning when they appear.

Redesigned with a record-to-disk picture; compression now applies per batch as Kafka does, default ratios come from published measurements, and replication and retention size the disk.

• Switched to the full WHO (birth to 2) and CDC (2 to 20) growth tables for every month, with exact percentiles and a BMI-for-age percentile from age 2.
• Redesigned with a growth chart that marks your child among the percentile bands.

Redesigned around a cost-by-volume chart with the break-even point; API prices now come from provider price lists, GPU rental from RunPod, and whole GPUs are sized to fit each model.

Prices updated to current provider lists; cache hits now use each model’s own cache-read price, and cheaper alternatives are compared within the same class of model.

Redesigned: a balance chart with and without extra payments, your payoff date, and a new biweekly option.

Rebuilt as a workspace with nested pages, quick find, page history, Trash and a Markdown mode; it installs as an app that works offline, and reloads no longer wipe saved pages.

• Rebuilt: a code editor with suggestions, 22 themes, a zoomable canvas, PNG, SVG and PDF export, version history and presenting; it also installs as an app that works offline.
• Reloads and opened share links no longer overwrite the diagrams you had saved.

Redesigned: optional taxes, insurance, PMI and HOA, extra monthly payments, the down payment in dollars or percent, a balance chart and the payment at nearby rates.

Added passphrases and a time-to-guess estimate; the history is now off unless you turn it on, and the page link carries your settings, never the password.

• Redesigned: your result is marked on a bell curve, with a labelled example until you enter your own measurements.
• Corrected the percentile tables so the median matches the study’s published averages (erect length 13.12 cm rather than 13.5 cm).

• Redesigned: drag along the bell curve to read any percentile, and enter your own length to see where it falls.
• Corrected the percentile values so the median matches the study’s published averages.

Redesigned: type the numbers straight into a sentence, with bars on one scale that picture the answer.

Redesigned: a ruler comparing your value with everyday things, common units as quick picks, the answer in other units at once, and corrected symbols such as pN for piconewton.

Redesigned as a fair race: the refinance is compared at the same monthly payment, break-even now counts closing costs plus interest paid so far, and a chart shows each option’s cost over time.

Redesigned: exact answers as fractions, a factored form and simplified square roots, next to the parabola graph.

• Redesigned: start from your monthly bill and state, the system is sized to your use, pay cash or with a loan, and a curve shows when it pays for itself.
• The federal credit now starts at 0%, as the 30% homeowner credit ended for systems installed after 2025; a battery now raises the solar you use at home.

Redesigned around a request waterfall with each budget behind it; removed the traffic and bounce-rate estimate, which came from a made-up formula, and added a check for unallocated budget.

Redesigned for phones with a square canvas, a tap-to-insert command bar and example cards; the example draws on load, typos suggest the right command, and exports are sharper.

Redesigned: a guided start, a tap-to-edit sheet for each photo, a wallpaper preview where you choose the photos, wrapping captions, and printing that works on phones.

• Redesigned: answer one question per screen with Guide me, or change every setting and swap any exercise with Customise.
• Added a yoga goal: each training day becomes a guided yoga session, with longer holds each block.
• On a laptop, a QR code opens your plan on your phone.

First published.

First published: a week-by-week Wegovy and Zepbound forecast from the clinical trials, with a private weigh-in tracker.

First published.

• Added an installable workout app to tick off sets, and calendar reminders for every session.
• First published.

Added next steps that follow your result.

Added suggested next steps.

Added an estimated volume, and condom fit is no longer suggested from a flaccid girth.

Fixed a crash when opening the colour picker.

Upgraded to Mermaid 11 with new diagram types, a canvas you can zoom and pan, theme presets and a hand-drawn look, shorter share links and copy as image.

First published.

Corrected the headers note: X-RateLimit-* is a common convention, not a standard; RFC 6585 defines only the 429 status and Retry-After.

Fixed large numbers: values above 2^53, such as 64-bit hex, now convert exactly instead of rounding.

Fixed encoding of uploaded binary files, which now use the file’s exact bytes.

Added a year-by-year breakdown of balance, contributions and interest.

Fixed the request-size check to use the compressed batch, which is what the producer actually sends.

Added a shareable result image.

A price you type in is now kept when you switch API models.

Added a non-bone-pressed option, condom fit by girth and a shareable result card.

Added a step-by-step solution.

Results now update as you type, starting from a filled-in example.

Extended from 0–127 to the full 0–255 table with Latin-1, HTML entities, search and copy on click.

Converts as you type, with no button to press.

Fixed the maths: buying now subtracts the car’s value less the loan owed; leasing counts excess-mileage and disposition fees, and a refundable deposit costs only its lost return.

Added monthly or yearly contributions; results now update as you type.

Results now update as you type, starting from a filled-in example.

Results now update as you type, with no Calculate button.

Results now update as you type, with a gauge showing where the A1C falls.

Results now update as you change a rating, starting from a filled-in example.

Added a tree view of the parsed JSON.

Results now update as you type, starting from a filled-in example.

Results now update as you type, starting from a filled-in example.

Results now update as you type, starting from a filled-in example.

Results now update as you type, with no Calculate button.

Results now update as you type, with no Calculate button.

Passwords now use the browser’s cryptographically secure random numbers instead of Math.random, with no bias toward any character.

Added newer studies with a comparison by world region; results beyond the 5th and 95th percentiles are now estimated instead of capped.

Results now update as you type, with no Calculate button.

Results now update as you type, with no Calculate button.

Results now update as you type, with no Solve button.

Fixed the savings maths: output now follows your state’s sun, roof direction and tilt, and exported power earns the export credit rather than the full rate.

Results now update as you type, starting from a filled-in example.

Added a share link that opens your program, and a cleaner look that matches the rest of the site.

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Rebuilt as a block editor: a slash menu, drag handles, callouts and toggles, [[page links]] with backlinks, math, Mermaid diagrams, templates and cover images.

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Added word count and reading time, find and replace, keyboard shortcuts and a table maker, and fixed autosave overwriting new edits with older text.

The code and the diagram are side by side in panes you can resize, and share links keep non-English text intact.

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Added document templates and a dark mode switch.

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