encoding.qwer · 1.0.0Base64, base64url, hex and percent-encoding read back, files as base64 and back, and query strings as maps.7 views · 7 downloadsJSON Schema json_schema.qwer · 1.0.0Check values against a JSON Schema (drafts 4 to 2020-12), with every error and the path of the value at fault.8 views · 8 downloadsFile type file_type.qwer · 1.0.0What a file really is from its first bytes, not its name: MIME type, extension and kind, for upload checks.7 views · 9 downloadsPDF forms pdf_forms.qwer · 1.0.0PDF forms: the fields listed with their types, values and choices, filled from a map with their appearances drawn, and flattened so they cannot be changed.8 views · 6 downloadsCaptcha captcha.qwer · 1.0.0Picture captchas made on your own server: distorted letters as a PNG data URL and the answer to keep in the session.7 views · 6 downloadsCSRF tokens csrf_tokens.qwer · 1.0.0CSRF protection for forms and fetch calls: tokens signed for one session that expire, the signed double-submit cookie check, and the Origin, Referer and Sec-Fetch-Site checks.7 views · 7 downloadsPassword strength password_strength.qwer · 1.0.0How guessable a password is (zxcvbn): a score from 0 to 4, a warning and suggestions, and how long it would take to crack.6 views · 8 downloadsPwned passwords pwned.qwer · 1.0.0Have I Been Pwned's Pwned Passwords by k-anonymity: only 5 characters of the SHA-1 leave the server, the answer is checked here.8 views · 9 downloadsCase case.qwer · 1.0.0Text in snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title Case and Sentence case: column names as API keys and labels.7 views · 8 downloadsHumanize humanize.qwer · 1.0.0Durations, file sizes and relative times as people write them and back: 2h 30m, 1.5 GB, 2 GiB, 3 days ago, in 2 hours.7 views · 11 downloadsInflection inflect.qwer · 1.0.0English words in the right form for counts and labels: plurals and singulars, 3 items, ordinals such as 1st and 22nd, and a or an by how a word sounds.6 views · 7 downloadsJapanese kana kana.qwer · 1.0.0Japanese kana: romaji typed as hiragana or katakana, kana written in Hepburn romaji, hiragana and katakana each to the other, half-width katakana from bank and till systems made full-width, and which scripts a text uses.6 views · 10 downloadsName parsing name_parse.qwer · 1.0.0People's names split into title, given, middle and family name and suffix, Last, First and ALL CAPS read too, and duplicates like J. Smith and John Smith found.7 views · 7 downloadsProfanity filter profanity.qwer · 1.0.0Offensive words found and masked in comments, usernames and chat, with l33t spellings and spaced-out letters caught, and a severity per kind for moderation queues.8 views · 8 downloadsSpam filter spam_filter.qwer · 1.0.0A spam filter that learns from your own messages: naive Bayes trained on what users mark, kept in a file, scoring comments and forms from 0 to 1.7 views · 7 downloadsSpellcheck spellcheck.qwer · 1.0.0Spelling checked against a word list you load, in any language: unknown words found with their places, suggestions ranked by closeness and frequency (SymSpell's method), text corrected for "did you mean", and your own words added.7 views · 8 downloadsUnicode unicode.qwer · 1.0.0Unicode text made comparable and measured: NFC and NFKC forms, accents removed, characters counted as people see them, safe truncation and terminal width.5 views · 8 downloadsCard numbers cards.qwer · 1.0.0Payment card numbers checked before they reach a payment provider: Luhn check digit, brand and length, expiry, and the number formatted or masked for receipts.7 views · 7 downloadsCountries countries.qwer · 1.0.0ISO 3166 countries for forms and addresses: alpha-2, alpha-3 and numeric codes, names in several languages, calling codes, flags, continents, currencies and EU membership.9 views · 7 downloadsCurrencies currencies.qwer · 1.0.0ISO 4217 currencies: names, symbols, minor units and the countries using them, prices formatted, and amounts turned into the cents payment APIs take.6 views · 7 downloadsEmail addresses email_address.qwer · 1.0.0Email addresses checked against RFC 5322 and split into local part, domain and display name.7 views · 7 downloadsIBAN and BIC iban.qwer · 1.0.0IBANs checked (country, length, check digits) and printed as banks print them, and BICs checked.9 views · 8 downloadsLanguages languages.qwer · 1.0.0ISO 639 language codes and names in English and in the language itself, two- and three-letter codes read, and the best of your translations picked from Accept-Language.7 views · 9 downloadsNational ID numbers national_ids.qwer · 1.0.0National identity numbers of 29 countries checked by their own rules (US SSN, UK NINO, CPF, Aadhaar, PH TIN, DNI and NIE, codice fiscale, PESEL...), with the birth date and sex read out where the number holds them.7 views · 7 downloadsPhone numbers phone.qwer · 1.0.0Phone numbers checked against Google's libphonenumber data, stored in E.164, shown in international or national form.7 views · 11 downloadsPostal codes postal_codes.qwer · 1.0.0Postal codes checked for 45 countries and written the post office's way: SW1A 1AA, 1012 JS, K1A 0B1, 100-0001, 20500-0001.6 views · 7 downloadsVAT numbers vat.qwer · 1.0.0EU VAT numbers checked offline by format and check digits for all 27 countries, Northern Ireland, the UK, Switzerland and Norway, to catch typos before an invoice goes out.8 views · 8 downloadsVINs vin.qwer · 1.0.0Vehicle identification numbers checked and decoded: the check digit, the maker's region, country and name, the model year, plant and serial.9 views · 8 downloadsEnglish dates dates_english.qwer · 1.0.0Dates typed in English read as times, in the user's time zone and US or UK style: next friday at 3pm, tomorrow 9am, in 2 weeks, 3 days ago.8 views · 10 downloadsAutocomplete trie.qwer · 1.0.0A prefix index for autocomplete kept in memory by name: entries with weights and data, the best completions of what was typed, at a word's start too.8 views · 11 downloadsOCR ocr.qwer · 1.0.0Text read from pictures in pure Rust: photos and scans of documents, receipts, labels and screenshots to plain text, row by row or line by line with boxes, parts of the page read by range (pixels or percentages), several form fields at once, only the characters you allow, and phone photos turned upright first.13 views · 9 downloadsCaptcha checks captcha_verify.qwer · 1.0.0Server-side checks of Cloudflare Turnstile, hCaptcha and reCAPTCHA v2 and v3 answers with one call and one result shape, the hostname, action and score checked, and the widget's HTML for the form.6 views · 7 downloadsCoordinates coordinates.qwer · 1.0.0Coordinates as people write them, such as 52°22'N 4°53'E or N 52° 22.2', read as one, written as degrees-minutes-seconds, and converted to and from UTM.7 views · 8 downloadsEpson ESC/P dot-matrix escp.qwer · 1.0.0Epson ESC/P and ESC/P2 for dot-matrix printers: pre-printed and multipart forms filled by line and column, reports with bold, double-width and condensed text, pitch, line spacing and page length, in code page 437 with box-drawing lines.7 views · 11 downloadsOther tags
files61import49api47text47network36forms34webhooks34search32devices31images31email30signing27monitoring26security26maps25uploads24printing23analytics22export22payments22validation20html19reports19database18integration18auth17binary16geo16barcodes15json14labels14logs14banking13invoices13notifications13svg13i18n12ids12iot12performance12sensors12time12calendar11dates11messages11seo11audio10config10documents10events10markdown10maths10storage10urls10ai9alerts9aws9backups9certificates9charts9dns9encryption9keys9languages9passwords9pdf9photos9privacy9social9testing9tls9xml9accounting8compression8finance8games8gps8http8locale8metrics8pagination8statistics8support8addresses7background7cache7chat7docs7geojson7google7llm7messaging7mobile7qr7secrets7shipping7sql7tokens7unicode7b2b6bots6calculators6css6dashboards6devops6embeddings6git6headers6jwt6links6oauth26settings6sign-up6spreadsheets6sso6udp6video6accessibility5admin5bookings5checksums5crm5delivery5experiments5game5history5industrial5integrity5location5memory5money5oauth5observability5phone5receipts5retries5service-account5sign-in5status5stores5tracking5writing5attachments4audit4books4caching4checkout4ci4cli4codes4colors4comments4compliance4counters4crawling4csv4debugging4dependencies4distributed4feeds4gis4health4healthcare4javascript4jobs4migration4podcasts4previews4push4random4rate-limits4reviews4rules4scheduling4scraping4seed4serialization4ssh4streaming4tickets4users4web42fa3assets3authentication3automation3azure3batch3bitcoin3browsers3cards3cars3code3cookies3dedupe3design3diff3ecommerce3encoding3firebase3fonts3forecasting3graphql3hardware3kv3markup3names3openstreetmap3ops3queues3ranking3realtime3releases3rss3shop3signals3sitemaps3sms3sounds3spam3sports3tags3templates3terminal3themes3tiles3tools3versions3word3abuse2access-control2address2archives2atom2authorization2autocomplete2avatars2base642building2cargo2catalog2cdn2changelog2chinese2cloud2cluster2configuration2containers2databases2directions2directory2discovery2docker2documentation2domains2downloads2duplicates2ebooks2editing2emv2exact2expiry2exports2fediverse2flags2folders2forecast2fractions2fun2gamification2gcp2gdpr2geocoding2glob2graphs2hls2identity2index2india2kafka2leases2lighting2lint2localization2locks2logistics2lookup2marine2microsoft2moderation2mongodb2multi-tenant2music2naming2news2newsletters2nosql2notes2npm2ocr2optimization2outdoors2partners2placeholders2places2planning2players2plc2policy2pos2power2pricing2protobuf2prototypes2pwa2query2radio2redis2reporting2robots2rpc2s32scada2scales2schedules2schema2secp256k12segments2servers2sessions2sha2562soap2solver2sqlite2supply-chain2tax2tcp2thumbnails2tooling2transactions2translation2translations2typos2upi2user-content2vehicles2wcag2weather2websockets2xss2yaml2a11ach1activitypub1agenda1aggregation1allen-bradley1allowlists1animation1apple1archive1arguments1arrow1asia1asn1asn11astronomy1atlassian1atproto1aviation1backup1baduk1base581bech321bioinformatics1bip211blake31blog1blogs1board1boards1bolt-111braille1branding1brazil1breaches1build1bulk1calendars1capture1cd1cdp1changes1chapters1chemistry1chess1chords1cities1clap1claude1clickhouse1code-style1colours1columnar1constellations1constraints1contacts1conversion1coordinates1coordination1couchdb1counting1coupons1cql1crawler1cryptography1custom-fields1cypher1dem1deploy1deployments1developer1diagrams1dice1dimacs1distance1dmx1dna1ed255191eip-551elasticsearch1elevation1embeds1embosser1emoji1energy1english1enterprise1equations1ethereum1excel1facets1family-tree1fasta1fastq1feature-flags1federation1feedback1fen1fido21firewall1fixed-width1fleet1forensics1formula1formulas1front-matter1fx1genealogy1generator1genetics1geohash1geoip1geotiff1gif1go1grafana1graph1grid1gzip1hex1hexagons1hilbert1hl71hmac1holdem1http21https1hvac1icmp1ics1incidents1inventory1invoice1ion1ios1ip1iptv1iso86011java1jql1json-ld1json-rpc1jsonl1julian-date1jupyter1keccak1keywords1kms1kubernetes1language1latex1ldap1lets-encrypt1libsodium1licences1licenses1licensing1lightning1linear-algebra1linked-data1listings1loans1local1localisation1logging1logic1mandates1mapbox1math1mathml1maxmind1maze1mbtiles1mcp1measurement-protocol1medical-imaging1meetings1meilisearch1memcached1merchant-of-record1merkle1meters1mfa1mgrs1middleware1midi1military1mmdb1mo1mockups1molar-mass1moon1morse1nat1navigation1neo4j1networks1newsletter1nfc1nginx1notebooks1oauth11oidc1omaha1on-call1onedrive1opa1open-meteo1openapi1opensearch1orbits1org-mode1osm1osrm1parquet1parsing1passkeys1passwordless1pathfinding1pbf1pgn1pgp1photography1pkce1planets1playlists1plugins1pmtiles1png1po1pods1poker1polyline1postgres1postgrest1powerpoint1probability1procedural1process1processes1productivity1profiles1projects1promql1puzzle1pxe1python1qdrant1quota1r21rabbitmq1range-requests1raster1rdf1readability1recommendations1reconciliation1recovery1recurring1refunds1remote1replication1repositories1reverse1revocation1rfc33391routers1routes1routing1rpg1sales1sandbox1sat1sca1scaling1science1screenshots1scripts1sdp1secured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