Browse the tool catalog | Page 88 | Elysia Tools

Elysia Tools

Browse tools, examples, visual explainers, and topic guides from one clear workspace.

Top Categories

Hubs

Language

ZH ES PT RU FR DE EN

Elysia Tools

Navigation

Tools

Browse the tool catalog | Page 88

Search and filter the online tool directory by task, format, and category, then open detailed pages with clear inputs, examples, and execution context. Page 88.

Previous 85 86 87 88 89 90 91 Next

Math, Date & Finance639

Calculators, numerics, date logic, statistics, and finance tools

Images, Audio & Video597

Image, audio, and video processing, conversion, and optimization tools

Design & Color294

Color, layout, graphics, visual styling, and design helper tools

Text & Writing206

Writing, cleanup, formatting, extraction, and text analysis tools

Developer & Web188

Developer utilities, networking, web debugging, and automation helpers

Conversion & Encoding172

Format, file, archive, unit, and encoding conversion tools

Absorbance Quantification and Acid-Base Calculations

JSON Structure Surgery

Tabular Data Cleanup, Shaping, and Normalization

Professional Assembly of an Excel Workbook

PDF Repair, Cleanup, and Slimming

Docs Pricing About Terms of Service Privacy Policy Contact

Development

WebSocket Frame Decoder

Decode raw WebSocket frames (hex or base64) byte by byte per RFC 6455: FIN/RSV/opcode, MASK bit, extended lengths, masking key, unmasked payload, close codes, and protocol-violation warnings.

Health

Ventilator Tidal Volume by PBW (ARDSNet)

Compute lung-protective VT from ARDSNet predicted body weight (PBW). Male 50+0.91×(cm−152.4); female 45.5+0.91×(cm−152.4). VT = mL/kg×PBW (4–8, default 6). Reports full range and plateau-pressure target. Derived from ARDSNet NEJM 2000, Brower 2004, StatPearls, LITFL. Not medical advice.

Health

Winter's Formula (Expected PaCO₂ in Metabolic Acidosis)

Calculate expected respiratory compensation PaCO₂ for metabolic acidosis: 1.5×HCO₃⁻ + 8 ± 2 mmHg. Classifies compensation as appropriate or flags mixed disorders. Derived from Albert 1967, Emmett 2016, LITFL, MDCalc. Not medical advice.

Cryptography

WebAuthn Passkey Assertion Decoder & Challenge Debugger

Decode WebAuthn/FIDO2 assertion fields, inspect authenticatorData flags and signCount, check challenge/origin/rpIdHash binding, and optionally verify ES256, RS256, or Ed25519 signatures with a supplied COSE public key.

Health

Wells Score for Deep Vein Thrombosis (DVT)

Calculate the Wells score to estimate clinical probability of deep vein thrombosis (DVT). Components: active cancer (+1), paralysis/paresis/recent plaster immobilization (+1), recently bedridden ≥3 days or major surgery ≤12 weeks (+1), localized tenderness along deep veins (+1), entire leg swollen (+1), calf swelling ≥3 cm vs other leg (+1), pitting edema confined to symptomatic leg (+1), collateral superficial (nonvaricose) veins (+1), previously documented DVT (+1), alternative diagnosis at least as likely as DVT (−2). Reports BOTH interpretations: three-tier (low ≤0 ~5%, moderate 1–2 ~17%, high ≥3 ~17–53%) and dichotomized two-tier (DVT unlikely ≤1 — a negative D-dimer rules out; DVT likely ≥2 — ultrasound/D-dimer). Derived from Wells 1997 (Lancet) and the Goodacre 2005 (BMJ) meta-analysis. Not medical advice.

Health

Wells Score for Pulmonary Embolism (PE)

Calculate the Wells score to estimate clinical probability of pulmonary embolism (PE). Components: clinical signs/symptoms of DVT (+3), PE is the most likely diagnosis (+3), heart rate >100 (+1.5), immobilization ≥3 days or surgery in last 4 weeks (+1.5), previous objectively diagnosed DVT/PE (+1.5), hemoptysis (+1), active malignancy (+1). Reports BOTH endorsed interpretations: three-tier (low <2 ~1.3%, moderate 2–6 ~16.2%, high >6 ~37.5%) and dichotomized two-tier (PE unlikely ≤4 ~12.1% — a negative D-dimer can rule out; PE likely >4 ~37.5% — imaging required). Derived from Wells 2001 (Ann Intern Med), ACEP 2018 clinical policy, and the ESC 2019 PE guideline. Pair with PERC and D-dimer. Not medical advice.

Health

Vancomycin Empiric Dosing Calculator (2020 ASHP/IDSA)

Empiric starting dosing for vancomycin per the 2020 ASHP/IDSA/PIDS/SIDP consensus guideline. Loading dose: 20–25 mg/kg actual body weight (obesity cap 3000 mg). Maintenance dose: 15–20 mg/kg actual body weight every 8–12 h. Optional creatinine clearance (CrCl) input suggests an empiric dosing interval (≥90 → q8h, 50–89 → q12h, 30–49 → q18–24h, 10–29 → q24h, <10 → q24–48h). Optional measured trough is classified against the SECONDARY trough target of 15–20 mg/L. The 2020 guideline shifted the primary monitoring target to AUC₀₋₂₄/MIC = 400–600 mg·h/L (within first 24–48 h); trough-only monitoring is no longer recommended as primary. Derived from Rybak MJ et al., Am J Health-Syst Pharm 2020. Empiric start doses ONLY — individualize by AUC-guided Bayesian monitoring. Not medical advice.

Health

Warfarin Dose Adjustment Calculator (INR Nomogram)

Adjust warfarin maintenance dose from the current INR using the standard nomogram for a target INR of 2.0–3.0. No-bleed ladder: INR<1.5 → +10–20% weekly dose; 1.5–1.9 → +5–15%; 2.0–3.0 → no change; 3.1–3.5 → −5–15%; 3.6–4.0 → −10–20%; 4.1–4.4 → hold 0–1 dose, ~−20%; 4.5–10 → hold + oral vitamin K₁ 1–2.5 mg; >10 → hold + oral vitamin K₁ 2.5–5 mg. Serious/life-threatening bleed at any INR → hold warfarin, vitamin K₁ 5–10 mg IV (slow, 20–30 min) + 4-factor PCC (FFP if unavailable). Optional current weekly dose computes the concrete new weekly and daily dose. Derived from the 9th-edition ACCP Guidelines (Holbrook et al., Chest 2012) and the UW Anticoagulation Clinic nomogram. Valid for adult maintenance therapy at steady state; not for initial induction, DOAC/heparin overlap, or perioperative bridging. Not medical advice.

Format Conversion

WireGuard/OpenVPN to Clash and sing-box Config Bridge

Convert pasted WireGuard or OpenVPN client text into Mihomo/Clash YAML or sing-box JSON with secret-field diagnostics; do not share private keys

Web & Internet

Web Search (SearXNG JSON)

Search the web through the s.stdlang.com SearXNG instance and return its JSON response for automation or downstream tools.

Health

Volume of Distribution Calculator (Vd)

Calculate the apparent volume of distribution Vd in two modes. (A) One-compartment IV bolus: Vd = Dose / C0 (C0 = concentration extrapolated to t=0). (B) From clearance and half-life (linear kinetics): Vd = CL · t½ / 0.693. Vd is an APPARENT (theoretical) volume, not an anatomical one — highly tissue-bound drugs (digoxin ≈ 7 L/kg, amiodarone ≈ 66 L/kg) can exceed total body water, while highly plasma-protein-bound drugs (warfarin ≈ 0.14 L/kg) fall far below it. Optional body-weight input converts the result to L/kg. Note: Vd = Dose/C0 gives Vc (initial); Vss (steady state) and Vz (terminal) differ for multi-compartment models, and oral dosing returns Vd/F. Not medical advice.

Math & Numbers

Ventilation Rate Calculator (People / Area / Contaminant)

Compute the required outdoor / supply ventilation rate. ASHRAE 62.1 ventilation-rate procedure: people component Vpz = Rp·P, area component Vaz = Ra·A, breathing-zone outdoor air Vbz = Vpz + Vaz, zone supply airflow Voz = Vbz / Ez. Three modes: ASHRAE 62.1 (people + area), per-person rate (P × Rp), or contaminant dilution (Q = G / (C_acc − C_sup), where G can be mg/s, mg/h, or L/s of gas and concentrations mg/m³ or ppm). Results reported in L/s, m³/h, and CFM.